Enable Travis CI for all branches

Author: raveit65

.travis.yml

@@ -5,12 +5,6 @@ language: bash
 services:
   - docker
 
-# Trigger only on the travis branch
-# Remove the lines if every thing is ok.
-branches:
-  only:
-  - travis
-
 before_install:
   - curl -Ls -o docker-build https://github.com/mate-desktop/mate-dev-scripts/raw/master/travis/docker-build
   - chmod +x docker-build