PraDigi for School

Invalid date

Added Haptic feedback for a few items
Connection with RPi fixed
Fixed instructions Local-related issues for old Android Versions.
Changes made to data push processes.
Added New Checked Synced Data Section - users can now check student-wise sync details.
Improvements to app tour - option to restart tour is now provided.
Displaying the resource size while downloading.
Fixes and optimizations related to RPi.
Added data (resource) download entry in Log table(INTERNET/RPi).