remove soop inheritance system
oops
remove soop imports
use node util.inherits
remove soop exports
fix SIN and add tests
bump version
also bump version in bower.json
add 0.1.27 browser bundle and point latest to it
replace bignumber.js with bn.js
use elliptic in Point in the browser instead of cryptojs
use elliptic for Point.multiply  and key regeneration
update sign function to use elliptic
add "ECKey" to Key test so grepping is easier
remove cryptojs dependency from Key
remove cryptojs dependency from util

...use hash.js, which is already required by elliptic
remove cryptojs dependency

...and all vendor bundle files.
require Point ... woops
remoe unimplemented bignum.pow()
make bignum interface backwards compatible

- fix cmp, mul, div, add, mod, sub functions to take numbers and strings
- fix Point class to use common folder correctly