[RFC] parser branches ready for commit

The parser branch is a ready as it will be without people testing
it more.  The upstream branch dv/master hat the latest, merged
together patches with extensive debug to stderr enabled.

Please take a look.  If there are no findings I'd like to put this
on master.

The patches also contain:

 * Removal of the Repeat command.
 * The discussed limitations on function size and recursion,
   solving the "fork bomb" problem and inifinitely growing,
   self modifying functions.

(Note: Produces a ton of debug output and is not suitable to the
general audience.  Debug output can be disabled by debug defines
in functions.c and cmdparser_old.c.)

Ciao

Dominik ^_^  ^_^

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Dominik Vogt