added initial skeleton for remove-app
added uaserver call to see if app exists, fixing test
cleaned up unused code and finished first pass on remove-app
changed bin remove-app script to python
updated coverage
merged master into remove-pwd-in-py
moved remove_app to be in alphabetical order, and fixed remove-app to properly abort if there is app data but the app isn't hosted
printing red exception message instead of stack trace, and catching bad secret error
extracted bad secret message to constant
made response checking more pythonic
extracted 5 second sleep to constant
Merge pull request #107 from shatterednirvana/remove-app-in-py

appscale-remove-app in Python