restore transposeLetters shortcut on mac

node_modules/ace/lib/ace/commands/default_commands.js

@@ -622,7 +622,7 @@ exports.commands = [{
     scrollIntoView: "cursor"
 }, {
     name: "transposeletters",
-    bindKey: bindKey("Alt-X", "Ctrl-X"),
+    bindKey: bindKey("Alt-X", "Ctrl-T"),
     exec: function(editor) { editor.transposeLetters(); },
     multiSelectAction: function(editor) {editor.transposeSelections(1); },
     scrollIntoView: "cursor"

node_modules/ace/lib/ace/editor.js

@@ -1426,6 +1426,7 @@ var Editor = function(renderer, session) {
             range = new Range(cursor.row, column-2, cursor.row, column);
         }
         this.session.replace(range, swap);
+        this.session.selection.moveToPosition(range.end);
     };
 
     /**