Update ACE Editor to version 1.2.9

The new ACE editor introduces full support for emojis (and, thereby, UTF-16 characters with high- and low-surrogates). Hence, we can remove our custom fix.

Further, this update will allow emojis to be used in pair programming sessions.

vendor/assets/javascripts/ace/theme-gruvbox.js

@@ -0,0 +1,82 @@
+define("ace/theme/gruvbox",["require","exports","module","ace/lib/dom"], function(require, exports, module) {
+
+exports.isDark = true;
+exports.cssClass = "ace-gruvbox";
+exports.cssText = ".ace-gruvbox .ace_gutter-active-line {\
+background-color: #3C3836;\
+}\
+.ace-gruvbox {\
+color: #EBDAB4;\
+background-color: #1D2021;\
+}\
+.ace-gruvbox .ace_invisible {\
+color: #504945;\
+}\
+.ace-gruvbox .ace_marker-layer .ace_selection {\
+background: rgba(179, 101, 57, 0.75)\
+}\
+.ace-gruvbox.ace_multiselect .ace_selection.ace_start {\
+box-shadow: 0 0 3px 0px #002240;\
+}\
+.ace-gruvbox .ace_keyword {\
+color: #8ec07c;\
+}\
+.ace-gruvbox .ace_comment {\
+font-style: italic;\
+color: #928375;\
+}\
+.ace-gruvbox .ace-statement {\
+color: red;\
+}\
+.ace-gruvbox .ace_variable {\
+color: #84A598;\
+}\
+.ace-gruvbox .ace_variable.ace_language {\
+color: #D2879B;\
+}\
+.ace-gruvbox .ace_constant {\
+color: #C2859A;\
+}\
+.ace-gruvbox .ace_constant.ace_language {\
+color: #C2859A;\
+}\
+.ace-gruvbox .ace_constant.ace_numeric {\
+color: #C2859A;\
+}\
+.ace-gruvbox .ace_string {\
+color: #B8BA37;\
+}\
+.ace-gruvbox .ace_support {\
+color: #F9BC41;\
+}\
+.ace-gruvbox .ace_support.ace_function {\
+color: #F84B3C;\
+}\
+.ace-gruvbox .ace_storage {\
+color: #8FBF7F;\
+}\
+.ace-gruvbox .ace_keyword.ace_operator {\
+color: #EBDAB4;\
+}\
+.ace-gruvbox .ace_punctuation.ace_operator {\
+color: yellow;\
+}\
+.ace-gruvbox .ace_marker-layer .ace_active-line {\
+background: #3C3836;\
+}\
+.ace-gruvbox .ace_marker-layer .ace_selected-word {\
+border-radius: 4px;\
+border: 8px solid #3f475d;\
+}\
+.ace-gruvbox .ace_print-margin {\
+width: 5px;\
+background: #3C3836;\
+}\
+.ace-gruvbox .ace_indent-guide {\
+background: url(\"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAACCAYAAACZgbYnAAAAEklEQVQImWNQUFD4z6Crq/sfAAuYAuYl+7lfAAAAAElFTkSuQmCC\") right repeat-y;\
+}";
+
+var dom = require("../lib/dom");
+dom.importCssString(exports.cssText, exports.cssClass);
+
+});