gt-loader now deals with args
Merge remote-tracking branch 'upstream/master' into gtloader/args
Fixed issue with try\catch block
Merge pull request #524 from lossyrob/gtloader/args

Gt-loader now handles ARGs.
GeoJSON reader properly parses feature and geometry collections.

This checkin also fleshes out the GeometryCollection implementation.
GeometryCollection is separated into a new file, some constructors
are added along with a JtsGeometryCollection implementation.
Merge pull request #528 from joshmarcus/topic/geojson_collections

GeoJSON reader properly parses feature and geometry collections.
Add col, row, and extent constructor for RasterExtent.
Merge pull request #529 from joshmarcus/topic/rasterextentapply

Add col, row, and extent constructor for RasterExtent.
Fixed bugs with ToVector and RegionGroup
Additional fixes to ToVector
Added geotrellis.network
Merge pull request #531 from lossyrob/topic/network

Added geotrellis.network
Merge pull request #530 from lossyrob/fix/tovector

Fixed bugs with ToVector and RegionGroup
Replacing accidentally deleted file
Merge pull request #532 from lossyrob/oops/deletedfile

Replacing accidentally deleted file
Move AsPolygonSet out of package file.

Moving AsPolygonSet out of the package file allows us to dodge a
compiler error.
Removed debug path storing code from shortestpath

...and increasing the speed by a lot for large shortest path queries. Got to love free speed boosts.
Merge pull request #533 from joshmarcus/topic/aspolygonset

Move AsPolygonSet out of package file.
Move RasterData classes to geotrellis.raster package.
Refactor geotrellis.raster classes into separate files.