fixed dictwrite.py for ROOT5 and updated bs-streamerinfos.root (TrigSerializeResult-00-01-55)

	* python\dictwrite.py: disabled ROOT6 for now till this is
	implemented
	* fixed type traversal for ROOT5
	* added protection against writing existing streamers again to
	file
	* updated list of types to write streamers for to have explicit
	version number (generic typedefs are not in dictionaries so they don't work)
	* share/bs-streamerinfos.root: using the fixed dictwrite.py added all
	streamers missed for xAOD containers before (from 20.1.6)
	* Tagging TrigSerializeResult-00-01-55

2015-12-01  Marcin Nowak  <Marcin.Nowak@cern.ch>
	* python\dictwrite.py: fix for subtypes and fix for ROOT6 (but
	without subtypes)
	* Added streamerinfos from 20.1.5 for:
	  DataVector<xAOD::TrigVertexCounts_v1>     checksum=0xbdf26909
	  DataVector<xAOD::TrigSpacePointCounts_v1>   checksum=0xe9b90005
	* Tagging TrigSerializeResult-00-01-54