Upgrade from Bootstrap v2.3.2 to Bootstrap v3.3.4

[vivekkiran]

Bootstrap v2.3.2 is no longer officially supported.
http://getbootstrap.com/

Change Log
https://github.com/twbs/bootstrap/releases

[Manishearth]

Ouch, upgrading to v3 is annoying. They completely changed the classes.

The templates may require a rewrite (well, a replacement of spanX classes with col-x-y classes, at the least)

[dolftax]

Assigning to @TechnoAyan

[debloper]

@dolftax add an expected time as well, maybe?

[ping2ayan]

After a loads of try my page contents are still not loading.. Not getting the reason behind that..