PS-594 #comment Display error message on player load failure #time 1d

1. Add on error script handler and mark dependency state ‘error’ on
failed script.
2. Add check for failure state on dependencies and call error handler
in case of fail.
3. Display error message on fail.
* error message relies on player css.
Added flash var configuration for loader error

* Flash var configuration using “EmbedPlayer” error obj.
* Added test page.
Merge pull request #718 from kaltura/PS-594

PS-594 #comment Display error message on player load failure #time 1d