Update scrollback to use vmem_gettext()
Update all the things I previously updated for the new cterm_init() prototype

So now I expect things to work again... though X11 mode may have issues,
and SDL overlay mode is dog slow.

Thanks!

0) Default font, selected whenever textmode() is called.
	Updating also updates current font (1) but currently does not update
	the secondary font (2).
1) Primary font
2) Secondary font

Move dropfile parsing into separate file.

ciolib output.

should work correctly.

Allow the data_len to be specified as -1 to use strlen() on data.

doorway mode.