work on being ablt to cancel a mobile deploy
Merge branch 'master' into devoncarew_cancel_deploy
cleaned up cancel code
add todo:
review changes
added todo and dartdoc
made a utility function
Merge branch 'master' into devoncarew_cancel_deploy
fixed a test
Merge pull request #1995 from devoncarew/devoncarew_cancel_deploy

Devoncarew cancel deploy