added support to update the content last modification
Revert "added support to update the content last modification"

This reverts commit 8daf8e3975fbcc31bc934479871906d91a0707c3.
Merge pull request #93 from cyrilraja/master

*Fixed showing empty objects in event logs
removed unwanted code from inviteUser API
Merge pull request #94 from skpcharles/master

removed unwanted code from inviteUser API
Merge remote-tracking branch 'gooru/master'
Added fix for NPE
Added support to json based param in getmyclasspage
Added filter support  for library standards based on root node ID
Merge pull request #95 from skpcharles/master

Added support to json based param in getmyclasspage
Change cache key for fetch collection library data
Merge pull request #96 from sheebans/master

changed cache key for fetch library collection
Added support to show only Gooru course
Merge pull request #97 from sheebans/master

Added support to show only Gooru course
Added fix for When TEKS is unchecked in standard preferences even CC and CA standards are not shown in search
Merge pull request #99 from skpcharles/master

Added fix for When TEKS is unchecked in standard preferences even CC and...
*Fixed CORE-435 Two resource using same item sequence