Add: Travis

[frank-dspeed]

as @jcormier suggested we should test that image some how
@sameersbn
https://travis-ci.org/sameersbn/docker-redmine

This is not an active repository

You don't have sufficient rights to enable this repo on Travis. 
Please contact the admin to enable it or to receive admin rights yourself.

please visit the url and activate that repo thanks

simply use the standart settings it should work out of the box if it asks something we need tests for all branches and pull requests thanks

[frank-dspeed]

@sameersbn
https://travis-ci.org/sameersbn/docker-redmine

This is not an active repository

You don't have sufficient rights to enable this repo on Travis. 
Please contact the admin to enable it or to receive admin rights yourself.

please visit the url and activate that repo thanks

simply use the standart settings it should work out of the box if it asks something we need tests for all branches and pull requests thanks