Makes object argument optional and typo.

git-svn-id: http://svn.redmine.org/redmine/trunk@13672 e93f8b46-1217-0410-a6f0-8f06a7374b81
Gantt unit tests cleanup.

git-svn-id: http://svn.redmine.org/redmine/trunk@13673 e93f8b46-1217-0410-a6f0-8f06a7374b81
Remove contexts in QueryTest.

git-svn-id: http://svn.redmine.org/redmine/trunk@13674 e93f8b46-1217-0410-a6f0-8f06a7374b81
Test API authentification once.

git-svn-id: http://svn.redmine.org/redmine/trunk@13675 e93f8b46-1217-0410-a6f0-8f06a7374b81