Single quote at start of word is not considered a part of a
word any more.
Single quote at the end of a word now behave like capitalization:
lookup in the dictionary is done *disregarding* a final quote,
and it is forcefully added back into the suggestions afterwards.

Bug: 5566368
Change-Id: I14dd3815f4b743edba56d64a3abdf4b73d863a6a