changed absolute wsdl location to relative in filesystem; exemplarily for getSid.php (see http://textgrid-ws1.gwdg.de/tgauth/rbacSoap/examples/getSid.php); to be done bei Gelegenheit for all files in example directory

git-svn-id: https://textgridlab.org/svn/textgrid/trunk/middleware/tgauth@1638 7c539038-3410-0410-b1ec-0f2a7bf1c452