Add using namespace CLHEP to avoid compilation errors with new G4.

[ktf]

No description provided.

[ktf]

@civanch This fixes a bunch of them, but there are a few more compilation errors in the G4 branch. Do you know what is going on?

[cmsbuild]

A new Pull Request was created by @ktf (Giulio Eulisse) for CMSSW_7_0_X.

Add using namespace CLHEP to avoid compilation errors with new G4.

It involves the following packages:

SLHCUpgradeSimulations/Geometry
SimG4Core/KillSecondaries
SimG4Core/PrintGeomInfo
Validation/Geometry
SimTracker/TrackerMaterialAnalysis
SimG4Core/TrackingVerbose
SimG4Core/CustomPhysics
SimG4Core/GFlash

@civanch, @Dr15Jones, @ianna, @mdhildreth, @cmsbuild, @nclopezo, @giamman, @ktf can you please review it and eventually sign? Thanks.
@cerati, @GiacomoSguazzoni, @rovere 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.
@ktf you are the release manager for this.

[civanch]

+1

[cmsbuild]

This pull request is fully signed and it will be integrated in one of the next IBs unless changes or unless it breaks tests. @ktf can you please take care of it?

[cmsbuild]

+1
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/1410/summary.html

[cmsbuild]

This pull request is fully signed and it will be integrated in one of the next IBs unless changes or unless it breaks tests. @ktf can you please take care of it?

[civanch]

Some compillation problems are solved in 1531, if there are more let me know