Terminal compliance patch

[Callum Lowcay]

I have developed a patch to make the terminal client a little more
useful.  It's quite long, so I won't post it here, instead download it
from http://callumscode.com/downloads/wayland-terminal-patch-1.patch if
you are interested.

The patch adds the following features:

- UTF-8 compliance
- Most Vt102 escape codes, excluding double width/height lines
- Fancy colors
- Support for function keys, cursor keys, and editing keys
- Tested with vttest and vim

Bugs

- No autorepeat
- No support for function keys with modifiers
- Configuration hard-coded
- Redraw is slow

Merry Christmas