FEC-2086 #comment Fix UI state bug on first seek #time 4h

Perform pause in a non-blocking manner to allow initial video element
event queue to finish, otherwise we get “playing” event from native
player after we issue pause
#FEC-2086 #comment fix seek before play with kplayer
Merge pull request #1028 from kaltura/FEC-2086

Fec 2086