making login proc error if it fails to login user. Adding some aa_log statements to make it easier to see what's going on during a tclwebtest test case (in particular which URLs are being requested)
adding a simple example tclwebtest test case that creates a test user and logs him in over HTTP, requests a web page, and then teardowns the user. In order to do this I copied over some procs from etc/install/tcl to tclwebtest-procs.tcl. The procs in etc/install/tcl should go away as we have tclwebtest fully integrated in acs-automated-testing