Akriti/Sumedha fixed the error that message for room is free will not be displayed after creating an event
Akriti/Sumedha added the back and front navigation bar on the login page
Added binary with null check patch for the result, works in iphone now
Removed the space from the calander id for Qutub Minar.
(Priynaka/Renu)
1. Added a check for the QRCode  Pattern.
2. Changed QRCode by adding the prefix for the application.
Fixed the merge conflicts.