755OWSLib 0.3

Hey, sometimes you can't avoid the OGC's service architecture. OWSLib makes W*S suck less (apologies to Bob Ippolito) while you and I find our way back to the Web from the land of SDI. OWSLib 0.3 adds preliminary support for coverage services, contributed by Dominic Lowe of the British Atmospheric Data Centre, a colleague of Bryan Lawrence.