`editor.get$commonParent`
Fix `editor.selectedContainer`.
Backport $.addBack to alias $.andSelf.
Fix _selected image is saved on mousedown test.
Fix `editor.get$CommonParent` for PhantomJS.
Kinda fix list correction call from list insertion functions.
Fix `editor.get$CommonParent` for some cases.
selectedContainer documentation and code comment fix.
`editor.hasSelection`
testWym general testing utility.
Make jshint happy.
Use a non-empty document in the hasSelection tests.
editor.getSelectedNodes()
Use editor.getSelectedNodes here and there.
Merge branch 'master' into selectedContainer_fix

Conflicts:
	src/test/unit/test.js
	src/test/unit/utils.js
`editor.deselect()`
Test `deselect()`.
Some tests for `getSelectedNodes`. Some fail in IE8.
editor.setSingleSelectionRange not public. Prepend underscore to that.
editor.setSingleSelectionRange not public. Prepend underscore to that.