add -W to specify window size.

various other little fixes.

include/draw.h

diff --git a/include/draw.h b/include/draw.h
index 4b57934..9e1a5d5 100644
--- a/include/draw.h
+++ b/include/draw.h
@@ -526,6 +526,8 @@
 void putsnarf(char*);
 
 void drawtopwindow(void);
+void drawresizewindow(Rectangle);
+extern char *winsize;
 
 /*
  * Port magic.