GUI-334
added codemirror to policy edit dialog
GUI-334: Get CodeMirror to work for Edit Policy text area.
Merge branch 'develop' into GUI-334

Conflicts:
	koala/static/css/pages/user.css
	koala/static/sass/pages/user.scss
GUI-334: Get update policy to work on form submit in edit policy modal
GUI-334: Reset code editor textarea on edit policy modal close.
Remove unused var
Merge pull request #214 from eucalyptus/GUI-334

GUI-334: Enable CodeMirror for edit policy modal