[refactoring] Test rule.GetAllUsers()
[refactoring] Test Repo.GetReposOrGroups()
[refactoring] Gitolite.addUserOrGroup()
[refactoring] test grp.hasRepoOrGroup()
[refactoring] test gtl.NbReposOrGroups()
[refactoring] test gtl.GetRepoGroup()
Uses isRepoOrGroupSeen() and isUserOrGroupSeen()
[refactoring] test gtl.NbUsersOrGroups()
[refactoring] test gtl.repoOrGroupFromName()
[refactoring] test gtl.configsFromRepoOrGroup()
Cleanup Gitolite.AddUserOrRepoGroup()
[refactoring] test gtl.userOrGroupFromName()
[refactoring] test gtl.groupsFromUserOrGroup()