Store uninitialized operators and graphical meta-data in XML
New initialize system in UML documentation
Exisiting tests pass with new initialize system
Update XSD
Extend stream XML examples
Read and write uninitialized operators
Bump XML format version to 0.2
Default to manual memory management in pixel type conversion
Add classes for position and color
Add position to operator and color to thread
Update tests for new members
Write position and color to XML
Read position and color attributes
Compare versions