Removed blank css
Merge branch 'master' of github.com:techvision/brails4

Conflicts:
	app/assets/stylesheets/level.css.scss
Issues#10: Add Accessible Panel
Merge branch 'master' of github.com:techvision/brails4

Conflicts:
	app/assets/stylesheets/topic.css.scss
	app/views/layouts/application.html.haml
Issue#10: Add Accessible Panel
Resolved conflicts
Merge branch 'master' of github.com:techvision/brails4

Conflicts:
	app/assets/stylesheets/contents.css.scss
Removed accessible panel for change color
Add accessibility to signin, signup and remember_password page
resolve the conflict.
add the aria rolle and state and properties on tab pamel.
add tabPenel.js file.
tab panel accessibility functionality is done.
modified the application css file.
sass-rails updated
changed css extensions
added admin.css for precompile
bug fixes in css
modified the tabPanel js file.4
Merge pull request #39 from abhishekbose87/AddAccessibility

Add accessibility to signin, signup and remember_password page