add translitcodec to contrib
use translitcodec for urlify
remove unnecessary imports
convert session to dict before pickling

Session was constantly being pickled without converting to dict as it
should be.
Merge pull request #339 from flavour/master

Fix for orderby_on_limitby with Table aliases
fixed LazyCrypt.__ne__, thanks Jonathan
fixed login_bare uses registration_key without .strip() for boolean testing which causes failure, thanks Remco
fixed 1845:styling widget divs, thanks Paolo Caruccio
fixed 1843, commented functions should not appear as if they are exposed
IS_LIST_OF(other=[..])
Added _insert for App Engine
possibile regex fix
fixed issues with regex2 in validators?
Merge pull request #341 from spametki/master

Added _insert for App Engine
Merge branch 'master' of github.com:web2py/web2py
reverted latest patch
Remove illegal nosql command implementations
Merge pull request #343 from spametki/master

Remove illegal nosql command implementations
fixed issue 1850, caching errors when unable to obtain plugin list
MARKMIN(...,_class='...')