Cperello/fix basename for samba users and groups

I added new tests and everything pass now with the changes on this branch.

	Shares and Antivirus Samba tests
		InstallNonProfilePackages: OK
		EnableModules: OK
		ConfigNetworkSetExternal: OK
		ChangeDefaultQuota: OK
		AddUserWithNonASCIIChars: OK
		EditUserWithNonASCIIChars: OK
		AddGroupWithUser: OK
		AddUserFoo: OK
		CheckACLTestQuota: OK
		TestQuota: OK
		ChangeUserQuota: OK
		TestUsersShareWrite: OK
		TestUsersSharedRead: OK
		TestSambaLogsWrite: OK
		TestSambaLogsRead: OK
		EnableModules: OK
		CheckACLTestUsersShareWriteVirus: OK
		TestUsersShareWriteVirus: OK
		TestSambaLogsAntivirusEmpty: OK
		ActivateAntivirusInSamba: OK
		TestUsersSharedReadWithVirus: OK
		TestSambaLogsAntivirusNotEmpty: OK
		TestSambaLogsQuarantineNotEmpty: OK
		TestUsersSharedReadTxtOfInfo: OK
		AddZentyalShare: OK
		CheckACLShareFoobar: OK
		TestSmbClientZentyalShareWriteNoPerm: OK
		TestSmbClientZentyalShareReadNoPerm: OK
		GrantZentyalShareReadWrite: OK
		CheckACLShareFoobarAfterGrantReadWrite: OK
		TestSmbClientZentyalShareWriteWithReadWrite: OK
		TestSmbClientZentyalShareReadWithReadWrite: OK
		TestUsersShareWriteVirus: OK
		TestUsersSharedReadWithVirus: OK
		TestSambaLogsWriteWithVirus: OK
		TestSambaLogsQuarantineSecondVirus: OK
		TestWarningFileExists: OK
		GrantZentyalShareReadOnly: OK
		CheckACLShareFoobarAfterGrantReadOnly: OK
		TestSmbClientZentyalShareWriteWithReadOnly: OK
		TestSmbClientZentyalShareDeleteWithReadOnly: OK
		TestSmbClientZentyalShareReadWithReadOnly: OK
		TestSmbClientZentyalShareReadWithReadOnlyBadLogin: OK
		AddUserAdmin: OK
		GrantZentyalShareAdmin: OK
		CheckACLShareFoobarAfterGrantAdmin: OK
		TestSmbClientZentyalShareWriteAdmin: OK
		TestSmbClientZentyalShareReadAdmin: OK
		TestSmbClientZentyalShareReadAdminBadLogin: OK
		MkdirFileSystemShare: OK
		AddFileSystemShare: OK
		CheckACLFileSystemShare: OK
		TestSmbClientFileSystemShareWriteNoPerm: OK
		TestSambaLogsAccess: OK
		TestSmbClientFileSystemShareReadNoPerm: OK
		GrantFileSystemShareReadWrite: OK
		CheckACLFileSystemShareAfterGrantReadWrite: OK
		TestSmbClientFileSystemShareWriteWithReadWrite: OK
		TestSmbClientFileSystemShareWriteWithReadWriteBadLogin: OK
		TestSmbClientFileSystemShareReadWithReadWrite: OK
		GrantFileSystemShareReadOnly: OK
		CheckACLFileSystemShareAfterGrantReadOnly: OK
		TestSmbClientFileSystemShareWriteWithReadOnly: OK
		TestSmbClientFileSystemShareDeleteWithReadOnly: OK
		TestSmbClientFileSystemShareReadWithReadOnly: OK
		GrantFileSystemShareAdmin: OK
		CheckACLFileSystemShareAfterGrantAdmin: OK
		TestSmbClientFileSystemShareWriteAdmin: OK
		TestSmbClientFileSystemShareReadAdmin: OK
		DisableShareInPlaceBoolean: OK
		TestAccessDisabledShare: OK
		EnableShareInPlaceBoolean: OK
		DeleteZentyalShare: OK
		TestSmbClientZentyalShareDeleteWrite: OK
		TestSmbClientZentyalShareDeletedRead: OK
		ChangePassword: OK
		TestSambaAfterPasswordChanged: OK
		DeleteUser: OK
		CheckDeleteHome: OK
		CheckSambaPostHookActionsFooBar: OK
		CheckSambaPostHookActionsMyShare: OK
		RestartSamba: OK
		CheckSambaPostHookActionsFooBarAfterRestart: OK
		CheckSambaPostHookActionsMyShareAfterRestart: OK
		CheckSambaPostGroupAddRemoval: OK
		CheckSambaPostGroupAddMembershipRemovalAndAdding: OK
		check-zentyal-log: OK
		check-syslog-apparmor: OK