Meta data attributes to the models #52
adding geocoder module and geopy requirement
Merge remote-tracking branch 'upstream/master'

Conflicts:
	requirements.txt
Change to datetimes for metadata
Fix migrations
Ups, forgot to use it here
Merge pull request #60 from wilbertom/importer-bug1

Ups, forgot to use it here
Merge pull request #55 from wilbertom/issue-52-metadata

Meta data attributes to the resources
fixing revision number of migration script
Merge remote-tracking branch 'upstream/master'
Merge pull request #57 from radioprotector/master

Add Geocoder class, geopy requirement, and add additional address fields to resources
Grammar and organization changes to documentation files