Merge tag 'v3.8.5'

tagged 3.8.5
IMA3 SDK.  Add IMA3 SDK plugin to core. Latest from kwidget-ps folder.
Merge pull request #6 from kaltura/doubleClickIMA3

IMA3 SDK.  Add IMA3 SDK plugin to core. Latest from kwidget-ps folder.
fix exception on entryReadsy
Merge branch 'master' of https://github.com/kaltura/kdp
Merge branch 'master' into 3.8.7
#FEC-264 #comment unescape adTagUrl