Added unset_bootstrap

When using a website or theme already loaded with twitter bootstrap it
is unnecessary to call it again.
Seperated main bootstrap CSS files for unset_bootstrap
Merge pull request #188 from kabadabra/master

Added unset_bootstrap for the twitter bootstrap theme.
Bug fix from the unset bootstrap.
fixing toggle on title click of dialog form
Merge pull request #195 from arif-rh/master

Fixing toggle on title click when using add or edit dialog form
Change list height back to dialog_height .