standardized keyprefix
figure out correctly the content-type for request.restful. Thanks @mcabo
fix for issue 1642
fixed issue 1638:imap: content as list field type and other small changes, thanks Alan
fixed issue 1639:DAL, define_table and Field unpacked serialized attributes, thanks Alan
Merge pull request #173 from niphlod/fix/redis_sessions

standardized keyprefix
Merge branch 'master' of github.com:web2py/web2py
Merge pull request #174 from niphlod/issue/restful_contenttype

figure out correctly the content-type for request.restful. Thanks @mcabo
Merge pull request #175 from niphlod/enhancement/admin_python_version

fix for issue 1642
fixed possible memdb issue with table(id), thanks Luca
Update dal.py

I think It will be useful to update the table contents and to validate the data previously.

On the other hand, I think there is something weird in the update_or_insert definition (Class table) because it is not working properly on data updating.
adapter.connect = None after adapter.close_connection
fixed issue 1643:grid - export HTML - missing charset=UTF-8, problems with non-ASCII-chars; proposal, thanks Martin
pdfinvoice
session id null on cookieless client.
error on partition usage fixed
Merge pull request #177 from michele-comitini/session_id_fix

session id null on cookieless client.
reverted issue 1639:DAL, define_table and Field unpacked serialized attributes
Merge pull request #176 from mcabo/patch-1

Update dal.py
trying to trigget travis....