Add account type icon to account info header and change style of

"Saving to"

Screenshots: https://drive.google.com/a/google.com/folderview?id=0BwSNbQ_IWQd2NUFqb21MUm11WU0&usp=sharing

The changes related with "Saving to" (b/25366902) are in:
 - res/layout/editor_account_selector.xml
 - src/com/android/contacts/editor/CompactRawContactsEditorView.java

The changes related with account type icon (b/25189655) are in the
other files. The account type icon is added to account info header
in both full editor and read-only editor.

Bug: 25189655
Bug: 25366902

Change-Id: I4f149f639debd31296da81f6678cda8d01007ea9