Fixed so placeholder images produced by the media plugin gets selected when inserted/edited.
Fixed mixed tabs and spaces/trailing white space also moved the textcolor.css into TinyMCE.less.
Added prefix variable to textcolor override.
Optimized a few Quirks.js fixes on older IE 7/8.
Fixed bug where backspace would cause navigation in IE 8 on an inline element and after a caret formatting was applied.
Rewrote selection change handler a bit since it didn't work properly on older IE versions.
Marked resize ghost image with data-mce-bogus=all to keep it out of contents.