added a hack to make sure the project_id is not ambiguous.. I really don't like this one
added the filter definition because it's not being included explicitly anymore.. the autoloader does all the class stuff;
updated the error handling to actually display the error on the screen;
resolves: http://bugs.web2project.net/view.php?id=1421
Merge branch 'master' of github.com:web2project/web2project