Support integer type

[ybiquitous]

Hi,

Do you have a plan to add integer as a new base type?

E.g.

s = StrongJSON.new do
  let :unit_price, integer
end

Or is there some reasons not to have an integer type?

[soutaro]

Sounds good. 👍 #20

[ybiquitous]

Thanks a lot! 🎉