Added .travis.yml

Signed-off-by: emanuele <emanuele45@gmail.com>
And if we use our db-layer?

Signed-off-by: emanuele <emanuele45@gmail.com>
Something different

Signed-off-by: emanuele <emanuele45@gmail.com>
build ALL

Signed-off-by: emanuele <emanuele45@gmail.com>
Add build status icon (it looks nice :P)

Signed-off-by: emanuele <emanuele45@gmail.com>
Merge pull request #959 from emanuele45/travis

Setting up automated testing with Travis-ci