using JavaScript instead of Basic
added menu checkbox to enable colored charset mode
Using FUNCTION() and function() calls instead of r.function() calls.
added PAUSE(nSeconds), PAUSE(0), INPUT(message).
fixed UTF-8 to Radio-86RK charset
fixed scrolling after PRINT
added PAUSE(double), INKEY(0), INKEY(1), SPC(int)
added TAB(int)
now the coord. system starts at the bottom left corner
colors in the charset
added char=SCREEN(x,y); reserved variables R86 and r86 for internal use (instead of R and r).
added LINE(x,y)
fixed PLOT(x,y,0)
PRINT and PRINTLN
Merge branch 'js'