gps-0.8: dependencies

Dependencies for gps-0.8

library	base (>=3 && <6) GPX (>=0.4 && <0.5) hxt (>=8.5) pretty (>=1.0) prettyclass (>=1.0) statistics (>=0.9) time (>=1.1) vector (>=0.7) xsd (>=0.3 && <0.4)