Merged l1t-devel-CMSSW_7_3_0_pre1 from repository cms-l1t-offline
Merge branch 'l1t-devel-CMSSW_7_3_0_pre1' of github.com:cms-l1t-offline/cmssw into packerunpackerNewStructure
first commit etsum unpacker
first version of the etsum packer
including calo spare
hfring packer/unpacker
bug fix
first version of HFringunpacker
Merged packerunpackerNewStructure from repository ginnocen
Remove unnecessary files.
Hook up the last two (un)packers for stage1.
Merged l1t-devel-CMSSW_7_3_0_pre1 from repository cms-l1t-offline