Fix minor typos in the README.
Merge pull request #259 from marcjansen/typos

Fix minor typos in the README.
Move CSS module to extensions
Refactor docs/sources to reflect css change to extension status
Fix kmplacemark compliancy
Ensure proper behavior with refresh mode
Fix kml docs, kml_reflect does not exist anymore (not even in the stable kml module), use wms/kml instead
Superoverlay generation fixes
updating internal mac build server ip