HLS Index: Change how we generate short index to test an IOS issue
HLS Index: Change how we generate short index to test an IOS issue

On the KPCC iPhone app we're seeing some seek behavior changes that may have
coincided with 01b9525adaa1785ccd1229a30b45e616ce1f2d18. Removing the
DATE-TIME from the full index to see if that changes what we're seeing.

pteich/StreamMachine,StreamMachine/StreamMachine,cdgraff/StreamMachine,cdgraff/StreamMachine,SCPR/StreamMachine,pedropapa/StreamMachine,SCPR/StreamMachine,pteich/StreamMachine,DreamNetwork/StreamMachine,pedropapa/StreamMachine,StreamMachine/StreamMachine,DreamNetwork/StreamMachine