Minimal test code cleanup
Merge pull request #540 from lossyrob/ps/testcoverage

Minimal test code cleanup
Separated out biking, transit, and walking in TransitGraph
Fixing transit graph bugs
Fixes to seperation of edge sets in Transit Graph
Merge pull request #541 from lossyrob/network/edgetype

Network/edgetype
Enabled arrival time for shortest path
Adding print ability for neighborhood, doc of how mask() works
Merge pull request #543 from lossyrob/doc/neighborhood

Adding print ability for neighborhood, doc of how mask() works
Merge pull request #542 from lossyrob/network/arrivaltime

Enabled arrival time for shortest path
Enabled weekly scheduled for public transit
Removed comments from speeds.
Added unit test for code coverage of getEdgeIterator
Fixed bug in TransitPath equal code
Merge pull request #544 from lossyrob/network/transitdays

Enable different schedules for public transit
Added operations to convert sequences of features to geojson
Fixed bug with .mapIfSet in StrictRasterData\some ArrayRasterData types.

Fixes #545
Merge pull request #546 from lossyrob/bug/mapIfSet

Fix mapIfSet bug, add additional ToGeoJson operations.
Merge branch 'master' of github.com:geotrellis/geotrellis into feature/datasource
wip