VectorToRasterProcess coordinate conversion errors
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                 Key: GEOT-3510
                 URL: http://jira.codehaus.org/browse/GEOT-3510
             Project: GeoTools
          Issue Type: Bug
    Affects Versions: 2.7.0
            Reporter: Michael Bedward
            Assignee: Michael Bedward
             Fix For: 2.7.1, 8-M0


While looking at GEOT-3509 I noticed two problems with conversion of world 
coordinates to grid coordinates in VectorToRasterProcess:

- It uses its own calculation which can differ from that later used by 
GridCoverage2D.evaluate method.
- If expanded bounds are provided, e.g. to ensure that all rasterized features 
are contained in the output grid, the setBounds method shrinks them to the 
feature bounds, defeating the purpose.


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