Quick admin color scheme picker

Lets you quickly switch between admin color schemes from the “howdy menu.” Happy Birthday Sara Cannon!

1. 

   The admin color scheme picker in the "howdy menu."

2. 

   Fully compatible with WordPress 3.3.

0.7

• Code cleanup; rm support for WP < 3.3

0.6

• Use user_meta instead of user options. Plays better with the user profile screen. Props nacin.
• Align color swatches better. The angel may be in the policy, but the devil is in the details.

0.5

• Only display the menu if is_admin(). Props koop.

0.4

• Update to work with WP 3.3, post-19230. Hopefully this will be the last of the 3.3 fixes…
• Now using add_menu instead of add_note, following a stern warning from nacin.

0.3

• Update to work with WP 3.3’s admin bar, at least as of beta 2.

0.2

• Code cleanup. Props nacin.

0.1

• First commit