Bring in ColorPicker activity

Summary:
Use "oldColor" as the integer intent extra to set a default color

Source for the awesome utility package this came from is at
http://code.google.com/p/yuku-android-util/source/browse/#git%2FAmbilWarna

Test Plan: still needs some polish

Reviewers: synergy

Reviewed By: synergy

Differential Revision: http://review.codefirex.com/D571