fetching the selected text.

Bug: 2950652

Some refinements to correction behavior, such as retaining the tap-to-save
when in correction mode.

Use reflection to access the new InputConnection APIs with fallbacks, in case
we run on older OS versions.

Some refactoring to separate lookup for voice alternatives and typed alternatives.

Change-Id: I7c4178bf7e6b47ee274c49fa7a694f8c2d50cea7

TODO: Cleanup will follow.

Change-Id: I4a68ba9f2f55760aa24187f1f13fdfa8a0b70963

Move java code to a different directory so that the unbundled
version doesn't try to compile the native code again.

Change-Id: I05cf9e643824ddc448821f69805ccb0240c5b986

the change to logging to remove any private dependencies and use
broadcast intents to VoiceSearch instead.

I have audited this code and it appears good to go for open-source,
but would appreciate a second pair of eyes.

Still to do after submitting this CL:

* Reintroduce Amith's memory leak fix (37557) which was the only CL
  added to LatinIME since the last merge over to the private copy.
* Make some changes to allow LatinIME to work without voice search
  installed. Currently I believe it will show the mic but fail if
  you press it. We need to base the visibility on the mic on the
  availability of the service.
* Fix this code to use the new Gservices framework, it's still trying
  to use the old one.