CTS: add sam/wd integration tests.

• fix send_dynamic() exception
• fix basic sam integration test
• fixup calls to sam tests
• fix startup when using testquorum (currently only handles votequorum)
• improve SAM test case with better checking.

git-svn-id: http://svn.fedorahosted.org/svn/corosync/trunk@3056 fd59a12c-fef9-0310-b244-a6a79926bd2f