Add C, C++, Objective-C and Java to the list of languages in the code app

www/common/modes.js

@@ -10,6 +10,8 @@ define([
         "ASN.1 asn.1",
         "Asterisk asterisk",
         "Brainfuck brainfuck .b",
+        "C text/x-csrc .c",
+        "C text/x-c++src .cpp",
         "C-like clike",
         "Clojure clojure",
         "CMake cmake",
@@ -48,6 +50,7 @@ define([
         "HTTP http",
         "IDL idl",
         "JADE jade",
+        "Java text/x-java .java",
         "JavaScript javascript .js",
         "Jinja2 jinja2",
         "JSX jsx .jsx",
@@ -65,6 +68,7 @@ define([
         "Nginx nginx",
         "NSIS nsis",
         "N-Triples ntriples",
+        "Objective-C text/x-objectivec .m",
         "Octave octave",
         "Org-mode orgmode .org",
         "Oz oz",

www/common/sframe-common-codemirror.js

@@ -154,10 +154,15 @@ define([
         var setMode = exp.setMode = function (mode, cb) {
             exp.highlightMode = mode;
             if (mode === 'markdown') { mode = 'gfm'; }
-            if (mode !== "text") {
-                CMeditor.autoLoadMode(editor, mode);
+            if (/text\/x/.test(mode)) {
+                CMeditor.autoLoadMode(editor, 'clike');
+                editor.setOption('mode', mode);
+            } else {
+                if (mode !== "text") {
+                    CMeditor.autoLoadMode(editor, mode);
+                }
+                editor.setOption('mode', mode);
             }
-            editor.setOption('mode', mode);
             if (exp.$language) {
                 var name = exp.$language.find('a[data-value="' + mode + '"]').text() || undefined;
                 name = name ? Messages.languageButton + ' ('+name+')' : Messages.languageButton;