update hi translation
Update logo size
Merge pull request #712 from planemad/mongokit

CSS updates
home groupid added in group_set for each video
Merge pull request #708 from anujag/mongokit

django-registration-email added to signup using email
Merge pull request #713 from anujag/mongokit

local_settings file omitted in .gitignore
local_settings.py removed from git
Merge pull request #714 from sunnychaudhari/mywork

home groupid added in group_set for each pandora video
added site_video and site_landing_page variables in settings
Merge branch 'mongokit' of https://github.com/gnowledge/gstudio into mongokit
Modification for site_variables