Change history for GD::Map::Mercator

1.03	2008-Feb-27	D. Arnold
	- fix docs get_image() => image()
	- fix backkground => background typo
	- fix support for #RRGGBB color specs

1.02	2008-Feb-12	D. Arnold
	- fix test suite to use correct skip count

1.01	2008-Jan-24	D. Arnold
	- initial rewrite from GD::Map

