Increased typechecking on user registration/login forms

1. Appropriate display of errors.
2. Can be added: pop-over showing data-format to be filled.
Added ReadMe.rst
Updated ReadMe.rst
Added All_Question sub_header on the Quesitons Page.

1. Created 'questions' app
2. Shows detailed list and categorized frame of posted questions
CSS modified on some pages

1. Questions Page
2. Tags Page
Merge pull request #2 from darkdefender27/master

Wireframe 2