improve performance by drawing a ton of tiny squares instead of criss-crossing lines. I will never understand the HTML5 canvas...
print coordinates in tooltip, fix some CSS
add two images, small code refactor
improve performance for mousemove on large canvases
move tooltip into drawCanvas
support generating black-and-white patterns with symbols
reword the UI
print symbol in tooltip
add tooltips
update link and title
rename to crafty, hosted at /projects/crafty
add crafty files
update name to crafty