switched jinja2 templating to use jinja2.Environment
Merge branch 'mongo'
ideas for SP net on existing social networks
revised hashtag proposal
added revised design document
added twitter signin and made paper view follow arxiv CSS
added twitter signin button image
added Google+ sign-in button on homepage
added Google+ interactive sharing button to papers view
changed staticroot location
added __hash__ support for adding Document to a set or dict
added twitter login and arxivID hooks to webserver root
added basic twitter support
added basic arxiv support
added Google+ oauth sign-in capability
added support for templates to access gplusClientID
Merge branch 'pages'
Merge branch 'design'