Merge pull request #88 from cyrilraja/master

*removed logger info
Added fix for collection update issue
Merge pull request #89 from skpcharles/master

Added fix for collection update issue
Added fix for create colletion issue
Merge pull request #90 from skpcharles/master

Added fix for create colletion issue
Fixed NPE
CORE-705 Added from display name for email send from gooru
core 705 add from address instead from display name
Merge pull request #91 from vksvenkat/master

CORE-705 Added from display name for email send from gooru
Added fix for 'Invite Students' Emails are not sending
Merge pull request #92 from skpcharles/master

Added fix for 'Invite Students' Emails are not sending
*Fixed showing empty objects in event logs