Fixed the perforce p4Tool field to properly update for custom tool definitions
Merge remote-tracking branch 'upstream/master'

* upstream/master:
  Bumping version after 1.12 release
  Fixing small docs changes
  Found problem with the name upstream
  Add alternative ways of calling p4 and extendedEmail, with less args
  Adding support for copy artifacts build step
Merge pull request #30 from jmcgarr/master

Fixing a minor issue with Perforce client - p4Exec => p4Tool