FEC-1730 #comment Add timed check for adsManager #time 1d

Add configurable timed check var to double-click for verifying that
adsManager was actually loaded.
ima3 is blocked when to adBlockPlus in a manner that halts the
adsManager form being loaded correctly!
Merge pull request #788 from kaltura/FEC-1730

FEC-1730 #comment Add timed check for adsManager #time 1d