update README
Merge pull request #10 from shiva96b/master

edited application_controller
removed extra file
added scope for sorting based on no. of downloads
added ordering by no. of downloads to index
Added home page view for uploads
Merge branch 'master' of https://github.com/kbhat95/FileHub
Merge pull request #11 from chinmaydd/master

Added home page view for Uploads
controller changed from user to users
fixed referencing error
removed extra file
fixed referencing, syntax
Changed the params in attempt_login
Merge pull request #12 from karthiksenthil/master

Changed the params in attempt_login
changed default route to /uploads/home
Added before filter for authentication
Merge pull request #13 from karthiksenthil/master

Added before filter for authentication
added name, description fields to uploads
added file upload form, associated actions, before_action exception for signup
tweaked uploading configs