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/snippets/gobstones.js

@@ -0,0 +1,41 @@
+define("ace/snippets/gobstones",["require","exports","module"], function(require, exports, module) {
+"use strict";
+
+exports.snippetText = "# Procedure\n\
+snippet proc\n\
+	procedure ${1?:name}(${2:argument}) {\n\
+		${3:// body...}\n\
+	}\n\
+\n\
+# Function\n\
+snippet fun\n\
+	function ${1?:name}(${2:argument}) {\n\
+		return ${3:// body...}\n\
+	}\n\
+\n\
+# Repeat\n\
+snippet rep\n\
+	repeat ${1?:times} {\n\
+		${2:// body...}\n\
+	}\n\
+\n\
+# For\n\
+snippet for\n\
+	foreach ${1?:e} in ${2?:list} {\n\
+		${3:// body...}	\n\
+	}\n\
+\n\
+# If\n\
+snippet if\n\
+	if (${1?:condition}) {\n\
+		${3:// body...}	\n\
+	}\n\
+\n\
+# While\n\
+  while (${1?:condition}) {\n\
+    ${2:// body...}	\n\
+  }\n\
+";
+exports.scope = "gobstones";
+
+});