started drafting Decimal
experimenting with scales
More draft methods
More draft methods
Adding helper exception
added coverage reporting to phpunit
groundworks
added some tests and implementation
Added more implementation
Added the last of the trivial methods
Code style fix
Added skeleton for rounding
Added rounding tests
Fixed some formatting and added the simple rounding modes
Added half up and down
Added half even and odd
Added docblocks and made protected methods private
Merge branch 'release/0.2'