Users can now authenticate, programatically

Added Password digest to Users.
Added userspace authentication check.
Added bcrypt gem
Added login view and authentication methods

Added authentication and login view
Added before filter to ensure authentication happened
Fixed Duplicate add bug
Added simple signup functionallity
Needed tzinfo for Windows and commented out unicorn gem
Ignoring .idea
Fixed CSS content page margin
Commented out autoprefixer-rails gem
Added template for search
Removed unused model classes
Added some simple scopes to Medium
Added certain parameters for searching
Removed csrf for searching
Added recent flag in searching
Merge branch 'feat/search' into dev
Removed sample medium
Moved username representation to a async transaction
Added a few gems that avoid errors when developing on Windows.
tzinfo, tzinfo-data
commented out autoprefixer-rails to fix the project not working in browsers on Windows.
Merge branch 'collab/dembins3' into dev