Print deprecation warning if anybody uses phase1TkCustoms without phase1Pixel era

[makortel]

Title says it all. Suggested by @slava77 in https://github.com/cms-sw/cmssw/pull/13477/files#r54273167. I used the message in postLS1Customs.py as a template.

Tested in CMSSW_8_1_X_2016-02-23-2300, no changes expected.

[cmsbuild]

A new Pull Request was created by @makortel (Matti Kortelainen) for CMSSW_8_1_X.

It involves the following packages:

SLHCUpgradeSimulations/Configuration

@cmsbuild, @civanch, @mdhildreth, @davidlange6 can you please review it and eventually sign? Thanks.
@Martin-Grunewald this is something you requested to watch as well.
@slava77, @Degano, @smuzaffar you are the release manager for this.

cms-bot commands are list here #13028

[civanch]

please test

[cmsbuild]

The tests are being triggered in jenkins.
https://cmssdt.cern.ch/jenkins/job/ib-any-integration/11587/console

[cmsbuild]

+1
Tested at: 1dcbe2a
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-13503/11587/summary.html

[cmsbuild]

Comparison is ready
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-13503/11587/summary.html

[civanch]

+1

[cmsbuild]

This pull request is fully signed and it will be integrated in one of the next CMSSW_8_1_X IBs (tests are also fine). This pull request requires discussion in the ORP meeting before it's merged. @slava77, @davidlange6, @Degano, @smuzaffar

[davidlange6]

+1