Merge pull request #770 from sunnychaudhari/collection

bug resolved as displaying themes in both language
Fix NoReverseMatch url issue - 'view_articles' [added key 'group_id' to context_variables dictionary]
lowerYearLimit changed to (currentYear-30) & upperYearLimit changed to (currentYear-14) [only for dob]
Updated tabs navigation (using next & previous buttons); and Widget updated for start_time & end_time (used jquery-ui-timepicker-addon's datetimepicker() function)
Submit button: updated jquery's on-click call and label toggles depending upon node's state (new/existing)
Condition modified: If and only if editable field's value exists, then only apply readonly property.
'content' class removed from reveal-modal used for displaying map.
Merge branch 'mongokit' of https://github.com/gnowledge/gstudio into mongokit
Merge pull request #771 from AvadootNachankar/mongokit

Bug fixes for MIS module
pushed release date to October
link to Features.org and strikeout markup corrected.
spelling correction "registerd" to "registered"
images are displayed in lightbox image gallary,to easily navigate from collection of images
imageCollection querry added to display the images in image gallary