Add commas to all mapping tuples in properties.py
Add commas to all mapping tuples in properties.py

Inserted appropriate commas after the last entry of
the mapping variable to ensure consistency.

Change-Id: I0519cae693f13994bc64f20b40d681a8eafdca55

gforcada/jenkins-job-builder,puppetlabs/jenkins-job-builder,wsoula/jenkins-job-builder,wsoula/jenkins-job-builder,wsoula/jenkins-job-builder,puppetlabs/jenkins-job-builder,puppetlabs/jenkins-job-builder,gforcada/jenkins-job-builder,gforcada/jenkins-job-builder,gforcada/jenkins-job-builder,puppetlabs/jenkins-job-builder,gforcada/jenkins-job-builder,wsoula/jenkins-job-builder