Merge branch 'release/0.4.0'
Made config options docs clearer
Fixed GitHub formatting
Updated GitHub formatting
Fixed typo
Changed project URL
Merge branch 'release/0.5.0'

Conflicts:
	README.md
Merge branch 'master' of github.com:sebdah/scrapy-mongodb
Required specific pymongo version
Merge branch 'release/0.5.1'
Merge branch 'release/0.6.0'
Added license info and author
Added a Makefile
Added version to the Python file itself
Merge branch 'master' into develop