when threads are started during bootup, these threads do not contain any library functions (not even ::db_*). This change provides support to correct this for threads created vi ::xotcl::THREAD.
Removed the previous changes, they need to go in blank master so the .lrntoolbar will work with sloan and selva (sigh). Really need to work up away for packages themselves to pass up toolbars.
more robust thread initialization for aolserver 4.5: for some reason, threads created during initialization are not xotcl-aware; furthermore: passing method to privilege definition, fixes for url handling in http client