fix getSources to include HD / web flavors
Merge branch 'master' of local repository into performace-testing
FEC-450 304 Not Modified via removing KS from iframe
* any request that needs KS will generate or use playerData supplied KS.
* many requests / urls seemed to include KS for 'good measure', this
seems like it would hurt cacheability. At any rate KS can still be
generated clients side if its actually needed. 
* partially addressed FEC-810 via kWidget.api usage for entry loading