Allow any characters in the groupname
Allow any characters in the groupname

Fixes #82

owncloud/core,whitekiba/server,pollopolea/core,endsguy/server,whitekiba/server,cernbox/core,nextcloud/server,Ardinis/server,bluelml/core,whitekiba/server,andreas-p/nextcloud-server,pixelipo/server,pmattern/server,owncloud/core,endsguy/server,IljaN/core,andreas-p/nextcloud-server,IljaN/core,michaelletzgus/nextcloud-server,lrytz/core,jbicha/server,pmattern/server,sharidas/core,endsguy/server,cernbox/core,whitekiba/server,Ardinis/server,bluelml/core,Ardinis/server,endsguy/server,pollopolea/core,bluelml/core,pixelipo/server,lrytz/core,jbicha/server,xx621998xx/server,sharidas/core,andreas-p/nextcloud-server,cernbox/core,lrytz/core,pollopolea/core,andreas-p/nextcloud-server,pixelipo/server,lrytz/core,Ardinis/server,owncloud/core,andreas-p/nextcloud-server,lrytz/core,pmattern/server,bluelml/core,nextcloud/server,michaelletzgus/nextcloud-server,pollopolea/core,IljaN/core,phil-davis/core,pmattern/server,xx621998xx/server,owncloud/core,Ardinis/server,nextcloud/server,jbicha/server,xx621998xx/server,pixelipo/server,bluelml/core,xx621998xx/server,pollopolea/core,cernbox/core,owncloud/core,michaelletzgus/nextcloud-server,nextcloud/server,pmattern/server,IljaN/core,jbicha/server,xx621998xx/server,pixelipo/server,jbicha/server,IljaN/core,sharidas/core,michaelletzgus/nextcloud-server,whitekiba/server,sharidas/core,endsguy/server,cernbox/core,sharidas/core