Updating the MapServer README...

[Kralidis,Tom [Burlington]]

> Hi all: I'm trying to spend more time getting us out of OSGeo 
> incubation and am looking at all source files. One thing I 
> noticed in the README is that the Credits section is woefully 
> out of date. There have been so many contributors that the 
> section could get really long and still wouldn't be correct. 
> Any objection to using the source files as means to identify 
> contributors instead and cutting the credits section out of 
> the README? Most source files contain the name of the primary 
> contributors already.

Good idea. BTW, where are we at w.r.t. OSGeo incubation?
..Tom