empty index.html file
page structure to include jquery and modernizer
added settings form and empty canvas element
ugh, was in the middle of doing something and got distracted... checking in anyways (bad boy)
started drawing something on the canvas - make sure canvas logical width/height set correctly to avoid image scaling
removed need for Modernizr (overkill just for canvas detection)
renamed jquery.js file
added rudimentary Packer class with dumb packing algorithm
rough binary tree based packing algorithm
a working packing algorithm!
* hooked up sort
* renamed ALL width to w and height to h
* tidy up Packer
* added TODO
better sorting: added maxside option, and secondary sort for width/height/maxside
added list of blocks that did not fit
much refactoring and tidying up of algorithm
added ability to toggle on/off the fill colors
decoupled canvas size from packer size
implemented a growing packing algorithm, that starts at the size of the 1st entry and grows as needed.

 (but it has 1 blind spot I need to deal with)
error handling when blocks.empty?
fixed weakspot with grow algorithm by ensuring intial root defaults to size that is at least as large as max(w) x max(h)
trying to make smarter decision about growing right vs growing left....

... tricky. I think I need to be able to step through each decision in an animated way.
trying to abstract calling interface to make it easier to swap Packer implementations