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
TEST/VERIFY - issue CCH-5: reformat NJ shapefile to meet new standard 
https://internal.cida.usgs.gov/jira/browse/CCH-5

Re-apply changes, with fix for System properties side effects, and
expected failure of testWriteReadBiggerNumbers
Re-introduce checks for data overflow, with fix for System properties
side effects, and expected failure of testWriteReadBiggerNumbers test.

Overflow check is disabled by default. It is enabled by setting system
property "org.geotools.shapefile.reportFieldSizeErrors" to TRUE.
Merge branch 'master' of https://github.com/rhayes-cida/geotools.git
Merge remote-tracking branch 'upstream/master'
Merge remote-tracking branch 'upstream/master'
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"