Added some smoother transitions to the editor

 - Transition when removing a field
 - Transition when pushing the "Add organization" button
 - Transition for visibility of "Add xxx" when entering text
 - Added pushed state on "Add organization" button
 - Increased the height of "Add xxx" to match the expanded size for simple
   Editors from 40dip to 48dip

Bug:6009430
Change-Id: Ia4524006b528f49d587c6277ecc98b11f77ddc0d