Document WFS 2.0.0 change of typeName -> typeNames

Addresses GEOS-5971
using version for importer-rest dependency
removing unused import
Fixing some broken keys
Merge pull request #387 from bgsmase/GEOS-5971

Document WFS 2.0.0 change of typeName -> typeNames
documentation - Straight line behaviour with followLine
Update function_reference.rst

removed duplicate BufferWithSegments.
Update geometry-transformations.rst

Typo
Update shapefile.rst

Clarified Memory Mapped buffer options for shapefile.
Update GeoServerApplication.properties

Memmory mapped buffers clarification
GEOS-6072: added xerces module dependencies to the community printing plugin module
Merge pull request #388 from mbarto/geos6072_print_missing_xerces

GEOS-6072: added xerces module dependencies to the community printing plugin module
[GEOS-6135] NPE when trying to access a OGR generated output format via WFS 2.0