Added travis.yml file.
Configured travis.
Merge branch 'master' into develop
Merge branch 'develop' into feature/travis_integration
Version updated
Fixed travis script.
Added travis build status to readme.
Added branches whitelist for travis.
Merge pull request #16 from ladoch/feature/travis_integration

Travis-ci integration
Fix.
Merge pull request #17 from ladoch/develop

v0.5.2