Add Elixir to available languages (#61)

* Add Elixir mode to available languages

* Update module to mode

lib/constants.js

@@ -131,6 +131,11 @@ export const LANGUAGES = [
     name: 'Docker',
     mode: 'dockerfile'
   },
+  {
+    name: 'Elixir',
+    mode: 'elixir',
+    custom: true
+  },
   {
     name: 'Elm',
     mode: 'elm'

lib/customModes/elixir.js

@@ -0,0 +1,4 @@
+import CodeMirror from 'codemirror'
+
+// Require Codemirror elixir mode from npm modules and register it here
+import registerElixirMode from 'codemirror-mode-elixir'

package.json

@@ -16,6 +16,7 @@
     "axios": "^0.16.2",
     "body-parser": "^1.17.2",
     "codemirror": "^5.26.0",
+    "codemirror-mode-elixir": "^1.1.1",
     "dom-to-image": "^2.5.2",
     "dropperx": "^0.0.3",
     "express": "^4.15.3",

yarn.lock

@@ -1176,7 +1176,13 @@ code-point-at@^1.0.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/code-point-at/-/code-point-at-1.1.0.tgz#0d070b4d043a5bea33a2f1a40e2edb3d9a4ccf77"
 
-codemirror@^5.26.0:
+codemirror-mode-elixir@^1.1.1:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/codemirror-mode-elixir/-/codemirror-mode-elixir-1.1.1.tgz#cc5b79bf5f93b6da426e32364a673a681391416c"
+  dependencies:
+    codemirror "^5.20.2"
+
+codemirror@^5.13.4, codemirror@^5.20.2, codemirror@^5.26.0:
   version "5.30.0"
   resolved "https://registry.yarnpkg.com/codemirror/-/codemirror-5.30.0.tgz#86e57dd5ea5535acbcf9c720797b4cefe05b5a70"