adds required css file for codemirror

bower.json

@@ -14,7 +14,7 @@
     "bootstrap": "http://getbootstrap.com/2.3.2/assets/bootstrap.zip",
     "jquery-tabby": "git://github.com/alanhogan/Tabby",
     "es5-shim": "~2.1.0",
-    "codemirror": "~3.16.0",
+    "codemirror": "~3.13.0",
     "showdown": "~0.3.1",
     "require-css": "~0.0.8"
   }

support/devel.js

@@ -8,6 +8,7 @@ define([
     'amber_inc/CodeMirror/smalltalk',
     'amber_lib/codemirror/addon/hint/show-hint',
     'css!amber_lib/codemirror/theme/ambiance',
+	'css!amber_lib/codemirror/lib/codemirror',
     'css!amber_lib/codemirror/addon/hint/show-hint',
     'css!amber_inc/CodeMirror/amber',
     'css!amber_css/amber',

support/helios.js

@@ -11,6 +11,7 @@ define([
     'amber_lib/codemirror/addon/hint/show-hint',
     'css!amber_lib/codemirror/theme/ambiance',
     'css!amber_lib/codemirror/addon/hint/show-hint',
+    'css!amber_lib/codemirror/lib/codemirror',
     'css!amber_inc/CodeMirror/amber',
     'css!amber_css/helios',
     'amber_core/Kernel-Objects',