TVPJSFRMWK-1036 TVPJSFRMWK-1058 Modified isBroadcastSourceSupported to make use of the Historian hasBroadcastOrigin.

TVPJSFRMWK-1051 Updated bindToCurrentChannel and stopCurrentChannel to change the style of the broadcast object in order to avoid background issues.
TVPJSFRMWK-1051 Updated the default style of the broadcast object to be hidden
Correcting indentation
Merge pull request #65 from fmtvp/is-broadcast-supported-using-historian

Updated isBroadcastSupported to use historian and hide hbbtv object when not displaying broadcast.