Backporting from 70x

[ianna]

• from Sunanda's gem-geometry branch

[cmsbuild]

A new Pull Request was created by @ianna for CMSSW_6_2_X_SLHC.

Backporting from 70x

It involves the following packages:

Geometry/MuonCommonData

@civanch, @Dr15Jones, @ianna, @mdhildreth, @cmsbuild, @nclopezo, @ktf can you please review it and eventually sign? Thanks.
@ghellwig this is something you requested to watch as well.
You can sign-off by replying to this message having '+1' in the first line of your reply.
You can reject by replying to this message having '-1' in the first line of your reply.
@davidlange6 you are the release manager for this.

[slava77]

Hi Yana,

GEM/GE1/1 group has validated this geometry some time late last week/early this week up to full muon reconstruction.
We can switch to using this (v5 instead of v4) in the Extended2019 and 2023 geometries.

Cheers

Slava