update license to provide detail about documentation license and copyright of data...

git-svn-id: http://svn.osgeo.org/postgis/trunk@8311 b70326c6-7e19-0410-871a-916f4a2858ee

diff --git a/LICENSE.TXT b/LICENSE.TXT
index d857c9d0fbe4b4b89a21494d863b6a2ed7cf03f3..82687b91f4cacd9c5692088904f269af10c3bffb 100644 (file)
--- a/LICENSE.TXT
+++ b/LICENSE.TXT
@@ -28,4 +28,16 @@ loader/dbfopen,safileio.*, shapefil.h, shpopen.c
 loader/getopt.*
 
 -- Doc/xsl files
-These are under a BSD Style license
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+These are under a BSD Style license
+
+The documentation for is under a creative commons share-alike 3.0 license. 
+http://creativecommons.org/licenses/by-sa/3.0/
+
+Data used in documentation falls in one of the following categories
+- Many of the examples in the topology and tiger geocoder section utilize data from US Census Tiger data 2010 
+ http://www.census.gov/geo/www/tiger/tgrshp2010/tgrshp2010.html
+- data or snapshots generated by community
+- many images autogenerated by PostGIS documentation generator (which utilizes ImageMagick)
+ as described http://trac.osgeo.org/postgis/wiki/DevWikiDocNewFeature
+- PostGIS raster output functions such as the ST_AsPNG etc.
+- raster/vector data from MassGIS: http://www.mass.gov/mgis/laylist.htm 
\ No newline at end of file