modified:   README.md
 Project style guide and outline.

modified:   TODO.txt
 Updated changes to do.

modified:   Zwindow.cpp
 Increased drawing speed, removed [-|X] "buttons"

modified:   zinc.h
 Huge increase in drawing speed
 - Horizontal lines are drawn as a single move and string call
 - Drawing blocks of text changed from nested for loops to a single for loop
   which draws horizontal strings. No more character by character drawing.
   In my test, drawing 4 large windows took about 15 seconds, it now takes
   about 3. Testing done on a hardware terminal running at 9600 BAUD.