Restyle the image editor so it looks way less hideous.

props avryl.
see #27544.


git-svn-id: https://develop.svn.wordpress.org/trunk@27842 602fd350-edb4-49c9-b593-d223f7449a82
Theme Installer: Remove unused variables and undesired commas.

see #27055.


git-svn-id: https://develop.svn.wordpress.org/trunk@27843 602fd350-edb4-49c9-b593-d223f7449a82
Add braces to wptexturize() after [27839]. see #22692.


git-svn-id: https://develop.svn.wordpress.org/trunk@27844 602fd350-edb4-49c9-b593-d223f7449a82