Hello.

New realease of Blassic. This time I improved the compatibility with
the Spectrum Basic. Now the functions available in the Spectrum does
not require parenthesis in Blassic (USR only when used to take the
address of User Defined Graphics). The function VAL$ is added. A new
flag in system variables controls if the argument of TAB is 1 or 0
based.

Other news:

- POPEN on unix now redirects standard streams to /dev/null.
- FILES to printer channel now uses correct line width.
- Some messages that remains in spanish now are in english.
- Moving in the history buffer now places the cursor at end of line.
- INKEY$ now accepts a channel parameter and can be used with file
chanels.
- The high use of cpu when waiting for a key in graphics mode on Linux
and Unix is now avoided.
- PAUSE 0 now does a usleep (0) on Linux and Unix.
- The ; initial in INPUT and LINE INPUT now has effect (previously was
accepted but ignored).

That's all folks.