as_class parameter added to find
added test for as_class parameter
ok, no ordered dictionary in python 2.6
better tests and small fix
unset fixed
The value of the field in the $unset statement does not impact the operation. http://docs.mongodb.org/manual/reference/operator/unset/#op._S_unset
test for $unset fixed
Merge pull request #48 from Evgenus/master

as_class parameter added to find