OPEN - issue OPENFLEXO-663: Only XML Elements should appear as types in
the XSD MetaModel 
https://bugs.openflexo.com/browse/OPENFLEXO-663

Step 1 Correct for Maven POM xsd
Merge branch '1.6-beta' into 1.6_xsdconnector
OPEN - issue OPENFLEXO-585: Fix URI management for XML Technology
connector 
https://bugs.openflexo.com/browse/OPENFLEXO-585

Step 2 : ability to create individuals
LOW / Documentation based on Class diagrams
LOW / Fixed tests in src/dev/java
LOW / Formatting
Renamed project basicxmlconnector
IMPORTANT / Fixed very impacting NPE
MEDIUM / Added missing inspectors
MEDIUM / Fixed issue with CityMapping diagram definition
IMPORTANT: XML and XML/XSD refactoring
IMPORTANT : XML/XSD refactoring, stage 2
Fixing Issues with GUI
OPEN - issue OPENFLEXO-663: Only XML Elements should appear as types in
the XSD MetaModel 
https://bugs.openflexo.com/browse/OPENFLEXO-663
Merge branch '1.6-beta' of github.com:agilebirds/openflexo into 1.6_localconnectors