Added variable_del() to remove variable during uninstall.
Added dependancy to islandora_solr_search, and updated code review standards.
Update .travis.yml

Added link to dependancy.
Fixed an issue on form submit, and add workflow datastream view options in the workflow tab.
Merge branch '7.x' of https://github.com/MorganDawe/cwrc_workflow into 7.x
Merge pull request #7 from MorganDawe/7.x

Added variable_del() to remove variable during uninstall.