fixed ks initialization when ks is not generated by php or passed with flashvars
Stubs for widevine KS test file
Merge pull request #957 from rkreich/fix-ks-initialization

fixed ks initialization when ks is not generated by php or passed with flashvars
FEC-2230 integrates support for node UglifyJs compressor
Merge branch 'FEC-2230-uglyfy-js' into performance-testing

* commented out unused libs
* load silverlight on-demand. 

Conflicts:
	modules/KalturaSupport/resources/mw.KApi.js