Update git submodules
Update git submodules

* Update plugins/singleusergroup from branch 'master'
  to 45003c4e290cd29a8695db438ca30302fa0683c7
  - Fix compilation errors
    
    Change-Id: If714b63ba177c8f956af51fa02f5e8486bb2f8ee
    Signed-off-by: Edwin Kempin <ekempin@google.com>
    
qtproject/qtqa-gerrit,GerritCodeReview/gerrit,qtproject/qtqa-gerrit,GerritCodeReview/gerrit,GerritCodeReview/gerrit,WANdisco/gerrit,qtproject/qtqa-gerrit,GerritCodeReview/gerrit,GerritCodeReview/gerrit,WANdisco/gerrit,qtproject/qtqa-gerrit,WANdisco/gerrit,qtproject/qtqa-gerrit,WANdisco/gerrit,WANdisco/gerrit,GerritCodeReview/gerrit,qtproject/qtqa-gerrit,GerritCodeReview/gerrit,GerritCodeReview/gerrit,WANdisco/gerrit,WANdisco/gerrit,qtproject/qtqa-gerrit