backport of #5062 to 71x

[deguio]

No description provided.

[cmsbuild]

A new Pull Request was created by @deguio for CMSSW_7_1_X.

backport of #5062 to 71x

It involves the following packages:

DQMServices/Core

@nclopezo, @danduggan, @rovere, @cmsbuild, @deguio, @ojeda can you please review it and eventually sign? Thanks.
@barvic 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.
@Degano you are the release manager for this.
You can merge this pull request by typing 'merge' in the first line of your comment.

[deguio]

+1

[cmsbuild]

This pull request is fully signed and it will be integrated in one of the next CMSSW_7_1_X IBs unless changes or unless it breaks tests. @Degano can you please take care of it?