console: call dataChanged() in inputLineDiscipline if we need to do local echo
splash: remove log callback even if we don't have a graphics mode
kernel: added a TextIO class, which offers VT100 emulation to the local console (ie, x86 VGA).

This is hooked in to POSIX under /dev/textui.
login: check $TERM before trying to set terminal title.
ttyterm: new application ttyterm, which replaces winman when we are running text-only
init: we now support userspace in nogfx builds (hurrah!)
vmware-gfx: don't start SVGA until we actually set a mode (starting SVGA means VMware enters a default graphics mode - bad for text only builds!)