added description to ad rule
Merge branch '2.15-July-27' of https://github.com/kaltura/mwEmbed into 2.15-July-27
Bump version v2.15
Merge pull request #785 from kaltura/2.15-July-27

2.15 july 27
PLAT-630 #comment disable live demo page until PLAT-630 is closed.
Added note to player version utility to not use pre-releases on
production sites.
wp fix
Added native component coming soon landing page. 

#FEC-1876 #comment NativeCallout "coming soon" page is now active.
add description to the VPAID segments test file
fix merge conflict