calculator-0.2.2.1: dependencies

Dependencies for calculator-0.2.2.1

calculator	base (>=4.7 && <4.8) containers (>=0.5.5.1 && <0.5.6.0) haskeline (>=0.7.1.0 && <0.7.2.0) parsec (>=3.1.7 && <3.2)