changed os.clock to be the actual cpu time of the computer and introduced os.uptime as the replacement of the old functionality; dofile now properly throws when loading fails; graphicscard now stores the screen its bound to in the component, which allows for the computer to display messages after it crashed (by sending a display request to neighbors -> graphicscards installed in it); fixed potential timeout in os.signal; wrappers for pcall and xpcall to enforce timeout when they return, too
9 files changed
