refactor: organize codebase and remove redundant files

- Removed all backup/duplicate files
- Removed test files from root
- Consolidated documentation to /docs/
- Moved scripts to /scripts/
- Renamed f_* directories (removed prefix)
- Organized icons and assets
- Removed unused vendor directories
- Cleaned up redundant config files

app_scripts/shared/codemirror/mode/ruby/test.js

@@ -0,0 +1,14 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function() {
+  var mode = CodeMirror.getMode({indentUnit: 2}, "ruby");
+  function MT(name) { test.mode(name, mode, Array.prototype.slice.call(arguments, 1)); }
+
+  MT("divide_equal_operator",
+     "[variable bar] [operator /=] [variable foo]");
+
+  MT("divide_equal_operator_no_spacing",
+     "[variable foo][operator /=][number 42]");
+
+})();