Streamline ActionBar views from 15 views down to 6 or 7

Reduces the number of total inflated views from 135 down to 49 for a
single account +8 views for each additional account.

1. The empty view is a single view. (Saving 14 views)
2. The account view contains two lines and an unread count. (Saving 8 views)
3. The header is three views (Saving 12 views)
4. The folders are two lines, unread count and a color. (Saving 7 views)
5. The footer is 2 views (Saving 13 views)

The individual views are created without recycling and view recycling
*cannot* be used in getDropDownView.

Change-Id: I2fcb380bbfa8b1fc208a57b1ab72d8476a949c63
3 files changed