Travis issues

[dominikl]

It looks like travis isn't working for the romero-gateway any more:

...
�[0Ktravis_fold:end:before_install
�[0KCould not locate requirements.txt. Override the install: key in your .travis.yml to install dependencies.
travis_time:start:0a43edd8
�[0K$ .omero/lib-docker
.omero/lib-docker: line 6: e.: command not found

travis_time:end:0a43edd8:start=1522664111923424591,finish=1522664111930001373,duration=6576782
�[0K
�[31;1mThe command ".omero/lib-docker" exited with 127.�[0m
...

Could that be related to #3 , especially fdbd628

[dominikl]

Fixed by #15