Merge pull request #311 from jodygarnett/contributing

Improve Contributor guidelines
Another GEOT-3407 related fix
[GEOT-4609] Unclosed iterator in VectorToRasterProcess
[GEOT-4606] different offsets for same dash-stroke
sort out contributor role with clear advantages, responsibilities and procedure
Fix CSV tutorial to use "the_geom" and explain shape file limitations
Feedback from andrea and fix up the tutorial text to match
Merge pull request #313 from jodygarnett/geot_4595

Fix CSV tutorial to use "the_geom" and explain shape file limitations (GEOT-3595)
feedback from andrea on advantages of being a module maintainer
Merge pull request #312 from jodygarnett/contributor

sort out contributor role with clear advantages, responsibilities
GEOT-2333: removeSchema
Merge pull request #308 from geosolutions-it/GEOT-2333

GEOT-2333: removeSchema
[GEOT-4614] Support per property uom in styling
Adding doc and updating images for datastore section
Updating missing imports for doc samples
Fixed gt-webservice for GEOT-2333 removeSchema changes
improvement to management of ROI
Minor fix on empty mosaic creation
Excluding XML from filtering
Merge pull request #314 from aaime/uom

[GEOT-4614] Support per property uom in styling
Apply resolve timeout only at top level