Fixing issue #45

I haven't tested all of them, but I believe this should completely fix issue #45

All tests pass, and all the examples seem to work the same.

Rather than hacking up more hardcoded stuff, I went for a more general solution so that *almost* any CSS value will work.

The general gist of it is that numbers (with or without unit) are given a type of "number", functions are given a type of "function", space-separated values are given a type of "multi", and everything else is given a type of "normal".

And the parsing is designed to be extremely lenient, so that `foo(bar, 50qux)` is legal. This lets it handle all kinds of values (assuming it works in the browser, of course).

Bonus: discrete values like "font-weight: bold" work now.

One downside is I got rid of `morpheus.parseTransform` and `morpheus.formatTransform`. Not sure why those were public in the first place.

Also, apparently trying to set "boxShadow" causes the browser to go into an infinite loop (!) which I think is related to the parser, but that hopefully shouldn't be too hard to fix.