added skeleton methods to get or set appcontroller variables
adding test cases for get_property
wrote implementation to get and set properties, and added new tests for setting properties
refactored setting properties, and added logging throughout
fixed fakes for old version of boto
merged with org/master
catching cases when callers provide an invalid regex when retrieving properties
Merge pull request #808 from shatterednirvana/newest-boto

fixed fakes for old version of boto
Merge pull request #801 from shatterednirvana/get-and-set-appcontroller-vars

Enable users to query and set AppController instance variables