Handle multiple outputs of a do script by using *.tr files to hold name of target to actually run.  Separate redoing sleep from credoer to new crelock script.  Add dictionary, installation, principles, todo and todont to doc.  Add env scripts for c (cc cc, cc ccache) and gnumake (CXX).  Add do scripts for c (lex l c, cc allo '', cc no '', yacc y c), gnumake (CXX cpp o, LINK o ''), and ferc (trivial examples).  Add tests for calc, drake, multiout, and a regress script to run them.