Comment 2 for bug 1603749

Was brought to my attention that my previous comment might cause some confusion. To clarify, we can no longer support clicks on 16.10 or 16.04+overlay, due to changes in packagekit, and incompatibilities in the ABI due to gcc5 and gcc6. As we are working toward moving to snaps there, we have already removed the click store scope, and are working to bring a snappy store to 16.04+overlay unity8 session.