Added support for ExtededData (XDATA).

All the data described in http://www.autodesk.com/techpubs/autocad/acad2000/dxf/index.htm are parsed and the 1002 block goes to a list of attributes.
The SimpleFeature returns a Map with the parsed data and with a list with 1002 attributes
Create readme

Initial readme
Update formatting
GeoTIffIIOMetadataDecoder has been provided under MIT license
Correct MIT License
SOSNOKILLLICENSE was a misunderstanding of authors name
fix license summary
Correct header reference to JTS Envelope

Signed-off-by: Jody Garnett <jody.garnett@gmail.com>
Restore original header from Dennis M. Sosnoski

Signed-off-by: Jody Garnett <jody.garnett@gmail.com>
GeoTools has now joined OSGeo

Signed-off-by: Jody Garnett <jody.garnett@gmail.com>
correct authors name

Signed-off-by: Jody Garnett <jody.garnett@gmail.com>

Conflicts:
	modules/unsupported/postgis-versioned/src/main/java/org/geotools/data/postgis/attributeio/Base64.java
Fix header on Justins original work to correctly cite LGPL license. Keeping OGC © to credit method names from filter 2.0 spec

Signed-off-by: Jody Garnett <jody.garnett@gmail.com>
GEOT-4567: String constants in idExpression causes error
Testing graphic margin with sld 1.0 too
[GEOT-4568] Multi threaded http client claims to support gzip encoding in the request headers, but fails to handle them in the response
More tests for the graphic margin vendor param
[GEOT-4569] PolygonExtractionProcess default value prevents usage of process as a rendering transformation
Added setLegacy(true) to GML2 Encoding

I'm not sure when it changed, but in version 10-RC2 the GML class requires a "legacy" flag to be set to true before encoding features to GML2.

I've added code to set the flag to true, at least for the "full example"
Updated GML2 encode example: out2 -> xml

The example uses "encode2.encode(out2, collection);", but "out2" is not a defined variable. I assume that it was supposed to be "encode2.encode(xml, collection)" since the OutputStream "xml" is never written to.
Updated GML2 encode example to use List<SimpleFeature> to accumulate features

According to the feature tutorial, FeatureCollection objects should not be treated as immutable views, and so the add method was deprecated. I've updated the code to instead create a List<SimpleFeature> and then convert that list into a SimpleFeatureCollection where needed.
Expanded the amount of code included in the transform example

The amount of code included from "//transformExample start" to "//transformExample end" was previously insufficient to demonstrate how the prefixes should be structured or the collections created. It resulted in code being included in the Geometry documentation which did not build. I have modified the code to use an immutable FeatureCollection view, and have expanded the amount of code used in the example. The Geometry documentation will now have code that builds.
Changed tabs to spaces
Tried using a relative path to get the literalinclude