Added .mask to RasterSource.
Fixes #705
Merge pull request #706 from lossyrob/RasterSource/mask

Added .mask to RasterSource.
Merge pull request #707 from lossyrob/toVectorBug

Fixes #705
Added .fromUrl to RasterSource object.
Merge pull request #708 from lossyrob/RasterSource/fromUrl

Added .fromUrl to RasterSource object.
Update LICENSE
Made the 'services' project and package name consistent: s/service/services/g
Merge pull request #709 from lossyrob/services/packagename

Made the 'services' project and package name consistent
Modified uses of geotrellis.services package
Merge pull request #710 from lossyrob/services/packagename

Modified uses of geotrellis.services package
Added implicits to convert jts Geometries to features.
Added SeqSource, HistogramSource, removed DS type aliases.
Overloads of mapIntersecting
Create a DataSource with the converge results of a seq of DataSources
Fixed bug with reading Bit rasters w/ warp
Merge pull request #711 from lossyrob/0.9.0-RC3/updates

Fixes\Additions for 0.9.0-RC3
Removed dispatch, use spray for ArgUrl reading.
Merge pull request #712 from lossyrob/spray/ArgUrl

Removed dispatch, use spray for ArgUrl reading.
Fixed ArgUrl tests.

Using a spray server in a test suite was tricky, ended up having to use only one instance of it for the test suite using BeforeAndAfterAll.