Create new project that provide H2 implementation of disk RTREE
Enhance integer union to support ListIterator
Fix integerunion
more test
Add row filter in ReadRowSet
Finish implementation of local geometry index
Split h2rtree as MVSTORE package has not been exported by thomas mueller. Fix ReadRowset with filter
Remove temporary index file on orbisgis close
Merge pull request #706 from nicolas-f/feature/mapcontrol_rtree

MapControl local Mv store RTree

On the map editor component. Keep a local copy of row's geometry envelope in a rtree cached on disk (mvstore). 
Rendering of smaller portion of map is now faster thanks to this local rtree. This optimisation work with local H2 database and remote PostGIS database.It doesn't require a primary key or spatial index on the table.