Update Travis config
Update Travis config
Update Project config for Travis
Added xctool as a submodule
Update conf for Travis
Update project conf for Travis
Update Rakefile
Add unit tests for hotwords
Update podspec for 3.1.2
Merge pull request #49 from SebastienThiebaud/development-3.1.2

Development 3.1.2
Merge pull request #50 from SebastienThiebaud/development

STTweetLabel 3.1.2