Add Key.keyHintLabel and remove Key.keyHintIcon

This change also removes manualTemporaryUpperCaseCode and
manualTemporaryUpperCaseHintIcon.  Instead of these keyLabelOption now
has hasUppercaseLetter flag value.

Bug: 4436327
Change-Id: I88fdac1e888a7123735296f5ef45f5fdd565cd2e
198 files changed
tree: db71639a4f827e606390ab8a77e9edfbcac83d68
  1. dictionaries/
  2. java/
  3. native/
  4. tests/
  5. tools/
  6. Android.mk
  7. CleanSpec.mk