Comment 3 for bug 1043461

A fair amount of testing has occurred, the code actually landed prior to FFE but wasn't fully enabled, this is some bug fixing around it. Some of it is also covered by tests, or is a derivative of older tested code.

There is not an exact diff, but the security implementations as far as this goes are all contained in lp:libunity-webapps src/libunity-webapps-repository. The extensions interact with this library through the UnityWebappsApplicationRepository object contained in unity-webapps-application-repository.h.