added backend tests for documents
updated gemfile and changed wrong require
changed faker to test group
added backend and routes for document
backend for documents
documents tests passing
added styling
fixed tests and css
added acts as taggable gem
added tags bugg on new
added tests for tags
add tags working
delete unnecesary failes and methods
removed mongofile .-.
Merge pull request #21 from tangosource/feature/document-tags

Feature/document tags