geoserver/geoserver — pull request #2 by tschaub (2012-07-05 16:44:40+00:00)
Title: Adding a spherical mercator code for ArcGIS 10.

ArcGIS 10 recognizes the EPSG:3857, EPSG:102113, and EPSG:102100 as equivalent (see http://blogs.esri.com/Dev/blogs/arcgisserver/archive/2009/11/20/ArcGIS-Online-moving-to-Google-_2F00_-Bing-tiling-scheme_3A00_-What-does-this-mean-for-you_3F00_.aspx#12084). Adding support for EPSG:102113 in GeoServer means people can easily overlay layers from GeoServer and ArcGIS Server.