Starting release 1.5; rev develop branch to 1.6
Merge branch 'release/1.5' into develop
Use runs_once (explitly) so that generated environment tasks are run serially
and only once in a larger, parallel environment.
Add .travis.xml
Add badge output
gusset version upped
jinja filter 'select' modified
CI-269
make the select jinja filter better
CI-269
Update change log
Freezing requirements.txt as part of 1.6 release
Merge branch 'release/1.6'