v0.1.3

Added parameter to Run#step to allow passing the number of times to step

v0.1.2

Added detail to gemspec

v0.1.1

Added mortgage example

v0.1.0

First minor release
Removes puts in Model.rb
Alters beer_spec to use new var default syntax

v0.0.5

Added "bounce" example
Added arg to pass default value of variable with eqtn call

v0.0.4

v0.0.3

Added block parameter to Model instantiation to more easily create variables and equations.
Added "interest" spec to test a simple interest model
Added "beer" spec for a more complex model example
Added delay function which allows equations to interact with past periods