If the user gestures a word, then hits backspace in
disapproval, and gestures about the same thing again,
make sure that we don't suggest the same thing again.

Bug: 7549311
Change-Id: I793bc4df7c3841fa8f2f4146707c26e873f374c1

Bug: 8561056
Change-Id: I91fb0ac76dabfc841bafc0e2c0ea9f63e6f604f9

This uses the old suggestions. It does not try to recompute
new suggestions if there are no old suggestions yet: this is
coming in a later change.
If there are no suggestions, this shows the word itself
as a suggestion.

Bug: 8084810
Change-Id: I4c2e25df0ff3673be1825f57a0c19a9d23d47a48

There was a much, much simpler way of achieving the same thing.

Bug: 8583091
Change-Id: I8882f389312caad3b17335672892a31d30cd00bc

Bug: 7369456
Change-Id: Iecd6f6d617f31bd2aa6749516711aeb1f0549622

Bug: 8562529
Change-Id: Ibd853f0cb995e7fb35f8730eafcef73ead58c869

* commit '47bb8d7d':
  Fix a native crash in AOSP LatinIME

* commit '4fffa27d':
  Fix a native crash in AOSP LatinIME

bug: 8597610

Change-Id: I585c629636a52a1ac45b8cc686bc94427bb601df

Bug: 8376173
Change-Id: Icaac8ad412e0180c44e6a955943e3b208981b2ea

Bug: 8418765
Change-Id: Iff0edd4ed8da9d0d1a6fb9545224b232ba374469

Bug: 8556975
Change-Id: Ia6a0fe230585c9826199a0696fb0c1367e917134

Bug: 7657025
Change-Id: I4889721b5348c77ed56c5157557e9988dea48a02

Bug: 8247224
Change-Id: I339f285304824b778635f435d8587893fc241c4e

Bug: 8452013
Change-Id: I0169dc6b0d08d1b4d9e01a5fa2ad01e9db292bda

Change-Id: I2d939bc1e3279253902b28ff12bbf7861716b64d

* commit 'cfdc91b9':
  Import translations. DO NOT MERGE

* commit '9620943c':
  Hide Setup Wizard icon for stock keyboard

* commit '1aaaa64d':

* commit 'fd89cd20':

* commit '0d72a230':

* commit 'bea42fc5':

* commit '41a049a4':

am fb899d85: am 3019a5e1: am a8d29082: (-s ours) am d5c8247f: Reconcile with jb-mr2-release - do not merge

* commit 'fb899d85':

* commit '4c896a2f':

* commit 'b3cf23de':