The texts for more keys have been updated:
* morekeys_a should now include only letters relevant to the active language
* morekeys_misc_a should include misc letters (accents, etc) not specifically needed for typing in the language
The above still needs to be applied to most other languages. Only QWERTY has been updated with the new morekeys system. Other layouts still need to be updated.
Change [2/3]
Add an attribute that's used in layout xmls for specifying
the split-keyboard layout.
This attribute will be checked/set by the KeyboardBuilder which knows about
the "splittability" of the keyboard.
Bug: 4968173
Change-Id: I5d792e570b9648e09022e9b7e92a972a161009ee
