Merge changes I5d71606c,Ie1085f7e,I6e6717dc,I5a69d583,I6c0f3e3e, ... into o8.0

* changes:
  LatinIME: Pixel Blue Accent
  LatinIME: Pixel Blue
  Fix send button not being centered for non-standard densities.
  LatinIME: Fix to English dictionary can be added after deleting
  proper dvorak keyboard fix apparently this has been broken is aosp forever changes by @that1communist
  Rearrange Slavic & Greek morekeys
  LatinIME: Apply "Enable more keys for top row on tablets" (f6620308ba) and "Add "more" keys to ALL the keys" (c561f31af9) to slavik layouts.
  LatinIME: Add "more" keys to ALL the keys in Greek layouts
  Rearrange morekeys
  latinime: Add "more" keys to ALL the keys
  Fix ALL the keys for QWERTZ keyboards