upgraded bootstrap version first cut - Gaurav/Anil
homepage html,css changes according to bootstrap 3
fixed navbar responsive - Gaurav
Anil upgrated to bootstrap 3
[Anil/Gaurav]-fixed album css
navbar remaining fixes - Gaurav
[Anil/Gaurav]- home page carousel UI
[Anil/Gaurav] fixed article's UI
homepage navbar-footer image fixes
[Anil]-fixed album sharing and commenting pages
[Anil/Gaurav] categories right arrow fix
[Anil/ Gaurav] fixing contribution page
Fixing flake8 issues to fix build
Fixing flake8 issues to fix build
[Gaurav/Anil]-contribution page UI fixed
resolving conflits while merging branch - Anil/Gaurav