diff --git a/Makefile b/Makefile
index a9407d0..adc5308 100644
--- a/Makefile
+++ b/Makefile
@@ -93,10 +93,10 @@ revealjs/%/index.pdf: revealjs/%/index.html
 	revealjs/node_modules/phantomjs-prebuilt/bin/phantomjs revealjs/node_modules/reveal.js/plugin/print-pdf/print-pdf.js file://$(PWD)/$<?print-pdf $@
 
 latex/%/index.pdf: latex/%/index.tex
-	(cd $(@D) && latexmk -xelatex index.tex)
+	(cd $(@D) && latexmk -lualatex index.tex)
 
-%.eps: %.svg
-	inkscape -D -z --file="$<" --export-eps="$@"
+%.pdf: %.svg
+	inkscape -D -z --file="$<" --export-pdf="$@"
 
 %/handout.pdf: %/handout.odt
 	libreoffice --headless --convert-to pdf "$<" --outdir $(@D)
diff --git a/compile.sh b/compile.sh
index 1d0f494..4b62a4e 100755
--- a/compile.sh
+++ b/compile.sh
@@ -3,33 +3,33 @@ set -e
 
 case "$1" in
     "inkscape")
-		for presi in latex/*;do
-			for file in $presi/*.svg;do
-				[ -e "$file" ] && make "${file%.svg}".eps || true
-			done
-		done
+        for presi in latex/*;do
+            for file in $presi/*.svg;do
+                [ -e "$file" ] && make "${file%.svg}".pdf || true
+            done
+        done
         ;;
-	"latex")
-		make fonts
+    "latex")
+        make fonts
 
-		for presi in latex/*;do
-			[ -e "$presi/index.tex" ] && make "$presi/index.pdf" || true
-		done
-		;;
-	"libreoffice")
-		for presi in latex/* revealjs/*;do
-			[ -e "$presi/handout.odt" ] && make "$presi/handout.pdf" || true
-		done
-		;;
-	"revealjs")
-		make revealjs/node_modules
+        for presi in latex/*;do
+            [ -e "$presi/index.tex" ] && make "$presi/index.pdf" || true
+        done
+        ;;
+    "libreoffice")
+        for presi in latex/* revealjs/*;do
+            [ -e "$presi/handout.odt" ] && make "$presi/handout.pdf" || true
+        done
+        ;;
+    "revealjs")
+        make revealjs/node_modules
 
-		for presi in revealjs/*;do
-			[ -e "$presi/index.html" ] && make "$presi/index.pdf" || true
-		done
-		;;
-	*)
-		echo "USAGE: $0 [MODE]"
-		echo "modes: inkscape latex libreoffice revealjs"
-		;;
+        for presi in revealjs/*;do
+            [ -e "$presi/index.html" ] && make "$presi/index.pdf" || true
+        done
+        ;;
+    *)
+        echo "USAGE: $0 [MODE]"
+        echo "modes: inkscape latex libreoffice revealjs"
+        ;;
 esac
diff --git a/revealjs/package-lock.json b/revealjs/package-lock.json
index a6a33e8..62a9b44 100644
--- a/revealjs/package-lock.json
+++ b/revealjs/package-lock.json
@@ -9,10 +9,10 @@
       "resolved": "https://registry.npmjs.org/ajv/-/ajv-5.5.2.tgz",
       "integrity": "sha1-c7Xuyj+rZT49P5Qis0GtQiBdyWU=",
       "requires": {
-        "co": "4.6.0",
-        "fast-deep-equal": "1.1.0",
-        "fast-json-stable-stringify": "2.0.0",
-        "json-schema-traverse": "0.3.1"
+        "co": "^4.6.0",
+        "fast-deep-equal": "^1.0.0",
+        "fast-json-stable-stringify": "^2.0.0",
+        "json-schema-traverse": "^0.3.0"
       }
     },
     "asn1": {
@@ -46,7 +46,7 @@
       "integrity": "sha1-Y7xdy2EzG5K8Bf1SiVPDNGKgb40=",
       "optional": true,
       "requires": {
-        "tweetnacl": "0.14.5"
+        "tweetnacl": "^0.14.3"
       }
     },
     "boom": {
@@ -54,7 +54,7 @@
       "resolved": "https://registry.npmjs.org/boom/-/boom-4.3.1.tgz",
       "integrity": "sha1-T4owBctKfjiJ90kDD9JbluAdLjE=",
       "requires": {
-        "hoek": "4.2.1"
+        "hoek": "4.x.x"
       }
     },
     "caseless": {
@@ -72,7 +72,7 @@
       "resolved": "https://registry.npmjs.org/combined-stream/-/combined-stream-1.0.6.tgz",
       "integrity": "sha1-cj599ugBrFYTETp+RFqbactjKBg=",
       "requires": {
-        "delayed-stream": "1.0.0"
+        "delayed-stream": "~1.0.0"
       }
     },
     "concat-stream": {
@@ -80,9 +80,9 @@
       "resolved": "https://registry.npmjs.org/concat-stream/-/concat-stream-1.6.0.tgz",
       "integrity": "sha1-CqxmL9Ur54lk1VMvaUeE5wEQrPc=",
       "requires": {
-        "inherits": "2.0.3",
-        "readable-stream": "2.3.6",
-        "typedarray": "0.0.6"
+        "inherits": "^2.0.3",
+        "readable-stream": "^2.2.2",
+        "typedarray": "^0.0.6"
       }
     },
     "core-util-is": {
@@ -95,7 +95,7 @@
       "resolved": "https://registry.npmjs.org/cryptiles/-/cryptiles-3.1.2.tgz",
       "integrity": "sha1-qJ+7Ig9c4l7FboxKqKT9e1sNKf4=",
       "requires": {
-        "boom": "5.2.0"
+        "boom": "5.x.x"
       },
       "dependencies": {
         "boom": {
@@ -103,7 +103,7 @@
           "resolved": "https://registry.npmjs.org/boom/-/boom-5.2.0.tgz",
           "integrity": "sha512-Z5BTk6ZRe4tXXQlkqftmsAUANpXmuwlsF5Oov8ThoMbQRzdGTA1ngYRW160GexgOgjsFOKJz0LYhoNi+2AMBUw==",
           "requires": {
-            "hoek": "4.2.1"
+            "hoek": "4.x.x"
           }
         }
       }
@@ -113,7 +113,7 @@
       "resolved": "https://registry.npmjs.org/dashdash/-/dashdash-1.14.1.tgz",
       "integrity": "sha1-hTz6D3y+L+1d4gMmuN1YEDX24vA=",
       "requires": {
-        "assert-plus": "1.0.0"
+        "assert-plus": "^1.0.0"
       }
     },
     "debug": {
@@ -135,7 +135,7 @@
       "integrity": "sha1-D8c6ntXw1Tw4GTOYUj735UN3dQU=",
       "optional": true,
       "requires": {
-        "jsbn": "0.1.1"
+        "jsbn": "~0.1.0"
       }
     },
     "es6-promise": {
@@ -179,7 +179,7 @@
       "resolved": "https://registry.npmjs.org/fd-slicer/-/fd-slicer-1.0.1.tgz",
       "integrity": "sha1-i1vL2ewyfFBBv5qwI/1nUPEXfmU=",
       "requires": {
-        "pend": "1.2.0"
+        "pend": "~1.2.0"
       }
     },
     "forever-agent": {
@@ -192,9 +192,9 @@
       "resolved": "https://registry.npmjs.org/form-data/-/form-data-2.3.2.tgz",
       "integrity": "sha1-SXBJi+YEwgwAXU9cI67NIda0kJk=",
       "requires": {
-        "asynckit": "0.4.0",
+        "asynckit": "^0.4.0",
         "combined-stream": "1.0.6",
-        "mime-types": "2.1.18"
+        "mime-types": "^2.1.12"
       }
     },
     "fs-extra": {
@@ -202,9 +202,9 @@
       "resolved": "https://registry.npmjs.org/fs-extra/-/fs-extra-1.0.0.tgz",
       "integrity": "sha1-zTzl9+fLYUWIP8rjGR6Yd/hYeVA=",
       "requires": {
-        "graceful-fs": "4.1.11",
-        "jsonfile": "2.4.0",
-        "klaw": "1.3.1"
+        "graceful-fs": "^4.1.2",
+        "jsonfile": "^2.1.0",
+        "klaw": "^1.0.0"
       }
     },
     "getpass": {
@@ -212,7 +212,7 @@
       "resolved": "https://registry.npmjs.org/getpass/-/getpass-0.1.7.tgz",
       "integrity": "sha1-Xv+OPmhNVprkyysSgmBOi6YhSfo=",
       "requires": {
-        "assert-plus": "1.0.0"
+        "assert-plus": "^1.0.0"
       }
     },
     "graceful-fs": {
@@ -230,8 +230,8 @@
       "resolved": "https://registry.npmjs.org/har-validator/-/har-validator-5.0.3.tgz",
       "integrity": "sha1-ukAsJmGU8VlW7xXg/PJCmT9qff0=",
       "requires": {
-        "ajv": "5.5.2",
-        "har-schema": "2.0.0"
+        "ajv": "^5.1.0",
+        "har-schema": "^2.0.0"
       }
     },
     "hasha": {
@@ -239,8 +239,8 @@
       "resolved": "https://registry.npmjs.org/hasha/-/hasha-2.2.0.tgz",
       "integrity": "sha1-eNfL/B5tZjA/55g3NlmEUXsvbuE=",
       "requires": {
-        "is-stream": "1.1.0",
-        "pinkie-promise": "2.0.1"
+        "is-stream": "^1.0.1",
+        "pinkie-promise": "^2.0.0"
       }
     },
     "hawk": {
@@ -248,10 +248,10 @@
       "resolved": "https://registry.npmjs.org/hawk/-/hawk-6.0.2.tgz",
       "integrity": "sha512-miowhl2+U7Qle4vdLqDdPt9m09K6yZhkLDTWGoUiUzrQCn+mHHSmfJgAyGaLRZbPmTqfFFjRV1QWCW0VWUJBbQ==",
       "requires": {
-        "boom": "4.3.1",
-        "cryptiles": "3.1.2",
-        "hoek": "4.2.1",
-        "sntp": "2.1.0"
+        "boom": "4.x.x",
+        "cryptiles": "3.x.x",
+        "hoek": "4.x.x",
+        "sntp": "2.x.x"
       }
     },
     "highlight.js": {
@@ -269,9 +269,9 @@
       "resolved": "https://registry.npmjs.org/http-signature/-/http-signature-1.2.0.tgz",
       "integrity": "sha1-muzZJRFHcvPZW2WmCruPfBj7rOE=",
       "requires": {
-        "assert-plus": "1.0.0",
-        "jsprim": "1.4.1",
-        "sshpk": "1.14.1"
+        "assert-plus": "^1.0.0",
+        "jsprim": "^1.2.2",
+        "sshpk": "^1.7.0"
       }
     },
     "inherits": {
@@ -330,7 +330,7 @@
       "resolved": "https://registry.npmjs.org/jsonfile/-/jsonfile-2.4.0.tgz",
       "integrity": "sha1-NzaitCi4e72gzIO1P6PWM6NcKug=",
       "requires": {
-        "graceful-fs": "4.1.11"
+        "graceful-fs": "^4.1.6"
       }
     },
     "jsprim": {
@@ -354,7 +354,7 @@
       "resolved": "https://registry.npmjs.org/klaw/-/klaw-1.3.1.tgz",
       "integrity": "sha1-QIhDO0azsbolnXh4XY6W9zugJDk=",
       "requires": {
-        "graceful-fs": "4.1.11"
+        "graceful-fs": "^4.1.9"
       }
     },
     "mime-db": {
@@ -367,7 +367,7 @@
       "resolved": "https://registry.npmjs.org/mime-types/-/mime-types-2.1.18.tgz",
       "integrity": "sha512-lc/aahn+t4/SWV/qcmumYjymLsWfN3ELhpmVuUFjgsORruuZPVSwAQryq+HHGvO/SI2KVX26bx+En+zhM8g8hQ==",
       "requires": {
-        "mime-db": "1.33.0"
+        "mime-db": "~1.33.0"
       }
     },
     "minimist": {
@@ -408,15 +408,15 @@
       "resolved": "https://registry.npmjs.org/phantomjs-prebuilt/-/phantomjs-prebuilt-2.1.16.tgz",
       "integrity": "sha1-79ISpKOWbTZHaE6ouniFSb4q7+8=",
       "requires": {
-        "es6-promise": "4.2.4",
-        "extract-zip": "1.6.6",
-        "fs-extra": "1.0.0",
-        "hasha": "2.2.0",
-        "kew": "0.7.0",
-        "progress": "1.1.8",
-        "request": "2.85.0",
-        "request-progress": "2.0.1",
-        "which": "1.3.0"
+        "es6-promise": "^4.0.3",
+        "extract-zip": "^1.6.5",
+        "fs-extra": "^1.0.0",
+        "hasha": "^2.2.0",
+        "kew": "^0.7.0",
+        "progress": "^1.1.8",
+        "request": "^2.81.0",
+        "request-progress": "^2.0.1",
+        "which": "^1.2.10"
       }
     },
     "pinkie": {
@@ -429,7 +429,7 @@
       "resolved": "https://registry.npmjs.org/pinkie-promise/-/pinkie-promise-2.0.1.tgz",
       "integrity": "sha1-ITXW36ejWMBprJsXh3YogihFD/o=",
       "requires": {
-        "pinkie": "2.0.4"
+        "pinkie": "^2.0.0"
       }
     },
     "process-nextick-args": {
@@ -457,13 +457,13 @@
       "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-2.3.6.tgz",
       "integrity": "sha512-tQtKA9WIAhBF3+VLAseyMqZeBjW0AHJoxOtYqSUZNJxauErmLbVm2FW1y+J/YA9dUrAC39ITejlZWhVIwawkKw==",
       "requires": {
-        "core-util-is": "1.0.2",
-        "inherits": "2.0.3",
-        "isarray": "1.0.0",
-        "process-nextick-args": "2.0.0",
-        "safe-buffer": "5.1.1",
-        "string_decoder": "1.1.1",
-        "util-deprecate": "1.0.2"
+        "core-util-is": "~1.0.0",
+        "inherits": "~2.0.3",
+        "isarray": "~1.0.0",
+        "process-nextick-args": "~2.0.0",
+        "safe-buffer": "~5.1.1",
+        "string_decoder": "~1.1.1",
+        "util-deprecate": "~1.0.1"
       }
     },
     "request": {
@@ -471,28 +471,28 @@
       "resolved": "https://registry.npmjs.org/request/-/request-2.85.0.tgz",
       "integrity": "sha512-8H7Ehijd4js+s6wuVPLjwORxD4zeuyjYugprdOXlPSqaApmL/QOy+EB/beICHVCHkGMKNh5rvihb5ov+IDw4mg==",
       "requires": {
-        "aws-sign2": "0.7.0",
-        "aws4": "1.7.0",
-        "caseless": "0.12.0",
-        "combined-stream": "1.0.6",
-        "extend": "3.0.1",
-        "forever-agent": "0.6.1",
-        "form-data": "2.3.2",
-        "har-validator": "5.0.3",
-        "hawk": "6.0.2",
-        "http-signature": "1.2.0",
-        "is-typedarray": "1.0.0",
-        "isstream": "0.1.2",
-        "json-stringify-safe": "5.0.1",
-        "mime-types": "2.1.18",
-        "oauth-sign": "0.8.2",
-        "performance-now": "2.1.0",
-        "qs": "6.5.1",
-        "safe-buffer": "5.1.1",
-        "stringstream": "0.0.5",
-        "tough-cookie": "2.3.4",
-        "tunnel-agent": "0.6.0",
-        "uuid": "3.2.1"
+        "aws-sign2": "~0.7.0",
+        "aws4": "^1.6.0",
+        "caseless": "~0.12.0",
+        "combined-stream": "~1.0.5",
+        "extend": "~3.0.1",
+        "forever-agent": "~0.6.1",
+        "form-data": "~2.3.1",
+        "har-validator": "~5.0.3",
+        "hawk": "~6.0.2",
+        "http-signature": "~1.2.0",
+        "is-typedarray": "~1.0.0",
+        "isstream": "~0.1.2",
+        "json-stringify-safe": "~5.0.1",
+        "mime-types": "~2.1.17",
+        "oauth-sign": "~0.8.2",
+        "performance-now": "^2.1.0",
+        "qs": "~6.5.1",
+        "safe-buffer": "^5.1.1",
+        "stringstream": "~0.0.5",
+        "tough-cookie": "~2.3.3",
+        "tunnel-agent": "^0.6.0",
+        "uuid": "^3.1.0"
       }
     },
     "request-progress": {
@@ -500,7 +500,7 @@
       "resolved": "https://registry.npmjs.org/request-progress/-/request-progress-2.0.1.tgz",
       "integrity": "sha1-XTa7V5YcZzqlt4jbyBQf3yO0Tgg=",
       "requires": {
-        "throttleit": "1.0.0"
+        "throttleit": "^1.0.0"
       }
     },
     "reveal.js": {
@@ -518,7 +518,7 @@
       "resolved": "https://registry.npmjs.org/sntp/-/sntp-2.1.0.tgz",
       "integrity": "sha512-FL1b58BDrqS3A11lJ0zEdnJ3UOKqVxawAkF3k7F0CVN7VQ34aZrV+G8BZ1WC9ZL7NyrwsW0oviwsWDgRuVYtJg==",
       "requires": {
-        "hoek": "4.2.1"
+        "hoek": "4.x.x"
       }
     },
     "sshpk": {
@@ -526,14 +526,14 @@
       "resolved": "https://registry.npmjs.org/sshpk/-/sshpk-1.14.1.tgz",
       "integrity": "sha1-Ew9Zde3a2WPx1W+SuaxsUfqfg+s=",
       "requires": {
-        "asn1": "0.2.3",
-        "assert-plus": "1.0.0",
-        "bcrypt-pbkdf": "1.0.1",
-        "dashdash": "1.14.1",
-        "ecc-jsbn": "0.1.1",
-        "getpass": "0.1.7",
-        "jsbn": "0.1.1",
-        "tweetnacl": "0.14.5"
+        "asn1": "~0.2.3",
+        "assert-plus": "^1.0.0",
+        "bcrypt-pbkdf": "^1.0.0",
+        "dashdash": "^1.12.0",
+        "ecc-jsbn": "~0.1.1",
+        "getpass": "^0.1.1",
+        "jsbn": "~0.1.0",
+        "tweetnacl": "~0.14.0"
       }
     },
     "string_decoder": {
@@ -541,7 +541,7 @@
       "resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-1.1.1.tgz",
       "integrity": "sha512-n/ShnvDi6FHbbVfviro+WojiFzv+s8MPMHBczVePfUpDJLwoLT0ht1l4YwBCbi8pJAveEEdnkHyPyTP/mzRfwg==",
       "requires": {
-        "safe-buffer": "5.1.1"
+        "safe-buffer": "~5.1.0"
       }
     },
     "stringstream": {
@@ -559,7 +559,7 @@
       "resolved": "https://registry.npmjs.org/tough-cookie/-/tough-cookie-2.3.4.tgz",
       "integrity": "sha512-TZ6TTfI5NtZnuyy/Kecv+CnoROnyXn2DN97LontgQpCwsX2XyLYCC0ENhYkehSOwAp8rTQKc/NUIF7BkQ5rKLA==",
       "requires": {
-        "punycode": "1.4.1"
+        "punycode": "^1.4.1"
       }
     },
     "tunnel-agent": {
@@ -567,7 +567,7 @@
       "resolved": "https://registry.npmjs.org/tunnel-agent/-/tunnel-agent-0.6.0.tgz",
       "integrity": "sha1-J6XeoGs2sEoKmWZ3SykIaPD8QP0=",
       "requires": {
-        "safe-buffer": "5.1.1"
+        "safe-buffer": "^5.0.1"
       }
     },
     "tweetnacl": {
@@ -596,9 +596,9 @@
       "resolved": "https://registry.npmjs.org/verror/-/verror-1.10.0.tgz",
       "integrity": "sha1-OhBcoXBTr1XW4nDB+CiGguGNpAA=",
       "requires": {
-        "assert-plus": "1.0.0",
+        "assert-plus": "^1.0.0",
         "core-util-is": "1.0.2",
-        "extsprintf": "1.3.0"
+        "extsprintf": "^1.2.0"
       }
     },
     "which": {
@@ -606,7 +606,7 @@
       "resolved": "https://registry.npmjs.org/which/-/which-1.3.0.tgz",
       "integrity": "sha512-xcJpopdamTuY5duC/KnTTNBraPK54YwpenP4lzxU8H91GudWpFv38u0CKjclE1Wi2EH2EDz5LRcHcKbCIzqGyg==",
       "requires": {
-        "isexe": "2.0.0"
+        "isexe": "^2.0.0"
       }
     },
     "yauzl": {
@@ -614,7 +614,7 @@
       "resolved": "https://registry.npmjs.org/yauzl/-/yauzl-2.4.1.tgz",
       "integrity": "sha1-lSj0QtqxsihOWLQ3m7GU4i4MQAU=",
       "requires": {
-        "fd-slicer": "1.0.1"
+        "fd-slicer": "~1.0.1"
       }
     }
   }