fixed gae_memacache issue 1887, thanks mjwatson
fixed memdb anc session issue 1885
Merge pull request #387 from apa-1/master

Added 'from_address' to allow for separation of 'envelope sender' and 'f...
Merge branch 'master' of github.com:web2py/web2py
2.9.4
Fix for session unique_key query