Support querying for null values in mongoDB
removed customize it
fixed missing error in design when app does not exist
fixed problem with get_app when app does not exist
Merge pull request #179 from nursix/master

Ability to send emails with empty message body.
Merge branch 'master' of github.com:web2py/web2py
Merge pull request #180 from gi0baro/issue1641

Support querying for null values in mongoDB
Merge branch 'master' of github.com:web2py/web2py
fix issue with scheduler namespace. Thanks @limedrop for spotting this.
Merge pull request #181 from niphlod/issue/scheduler_namespace

fix issue with scheduler namespace. Thanks @limedrop for spotting this.
Merge branch 'master' of github.com:web2py/web2py
support new session logic
Merge pull request #182 from rpedroso/redis-mocktable-callable

redis_session: support new session logic
Merge branch 'master' of github.com:web2py/web2py
fixed typo in globals, thanks Niphlod
added boilerplate to be able to run tests from anywhere. Added test for validate_and_insert too.
Merge pull request #183 from niphlod/issue/tests

added boilerplate to be able to run tests from anywhere
Merge branch 'master' of github.com:web2py/web2py
no more plugins in wizard
moved lots of files