Merge pull request #647 from lossyrob/transform-jts

Added transformations of JTS geometries to SRS.
changing spark project's name to be consistent with other sub-projects
added sbteclipse plugin
added basic tiling scheme
added some comments
more comments
removed sbteclipse plugin as it makes more sense to add it to local .sbt/plugins
rewrote zoom to have early returns for sake of readability
Merge pull request #648 from ameetkini/tileid-scheme

TMS tiling scheme
Merge remote-tracking branch 'upstream/master' into rendering-namespace
Fixes 'dev' project.