Merge pull request #1 from ecomfe/develop

upgraded to jasmine 2.0 && added travis CI.
Merge branch 'release/0.3.1'
Merge branch 'master' of github.com:ecomfe/saber-emitter
Merge pull request #2 from ecomfe/develop

Merge branch 'release/0.3.1' into develop
Merge branch 'release/0.4.0'
Merge branch 'master' of github.com:ecomfe/saber-emitter
Merge branch 'release/0.5.0'
fixed codestyle.
Merge branch 'develop' of github.com:ecomfe/saber-emitter into develop