Merge branch 'ld/git-p4-tags-and-labels'

By Luke Diamand
* ld/git-p4-tags-and-labels:
  git p4: fix bug when enabling tag import/export via config variables
  git p4: fix bug when verbose enabled with tag export
  git p4: add test for tag import/export enabled via config

diff --cc git-p4.py
Simple merge