Fixes tasks project.

GeotiffImporter relied on geotiff.scala which was removed from the root project. We will be implementing this again at a later date.
Add configuration options for Jetty threadpool.
Add GeoTools-based functionality to subproject.
Removed lift-json dependency. …
Begone evil dependency!

Now parsing catalogs and arg JSON's with Jackson.

Closes #302.
Removed unused dependency.
Merge pull request #307 from lossyrob/issue/lift-json

Ridding ourselves of lift-json
Merge pull request #301 from lossyrob/pullreq/task-fix

Fixes tasks project.
Update akka remoting test and move to dev subproject.

This commit moves the RemoteClient and RemoteServer -- a mini-demo for
development testing -- to a "dev" subproject for development/experimental
code.
Merge pull request #304 from joshmarcus/topic/jetty_config

Add configuration options for Jetty threadpool.
Merge pull request #306 from joshmarcus/topic/geotools

Add GeoTools-based functionality to subproject.
Merge pull request #308 from joshmarcus/topic/dev_subproject

Update akka remoting test and move to dev subproject.
Fix Scaladoc URL.
Narrow type of AsPolygonSet to Op[List[Polygon[D]]].
Allow thoroughput limit value to be modified.

Allowing the thoroughput limit (the number of operations to be run in parallel)
to be changed on the operation greatly simplifies the interface.  Once we can
clone any operation this can be modified to an immutable interface.
Merge pull request #311 from joshmarcus/wip_aspolygonset

Narrow type of AsPolygonSet to Op[List[Polygon[D]]].
Fix bug in MultiplyDoubleConstant.

We should floor the result of multiplying the raster value with a double
constant -- not floor the double constant.
Merge pull request #316 from joshmarcus/wip_fix_multiply_raster2

Fix bug in MultiplyDoubleConstant.
Add Cost-Distance Operation and Spec
Add a benchmark for cost distance
Merge pull request #317 from ahinz/topic/cost-distance

Add new Cost-Distance Operation