add travis configuration file

Change-Id: Ic5009d0225930f7b430e5df5c15447f8e53ba4ab
Merge pull request #7 from mildis/travisIntegration

add travis configuration file
Add Travis build status badge
Allow force SQ branch from Gerrit branch name

Change-Id: I0498ab9fdaabed9a3a9132c80d623dbc642df76a