Provide more info when erroring on set property
update pymongo's dependency
encoding datum property names using ascii ignore
Maker py 0.1.3
fix Maker.make for all values.

Maker.instantiate would throw a TypeError when 'datum' was a valid BSON
data type (ex. regular expressions).
Merge branch 'master' of github.com:objectlabs/maker-py

Conflicts:
	setup.py
Merge branch 'fix-make'