Spatial 0.24.1-neo4j-3.0.8

Improvements in 0.24:

• bulk rtree support (and better balanced RTree for single inserts
• orthodromic distance fix
• updated to Neo4j 3.0.8 (copied some old docs classes in that are no longer part of Neo4j)

Bugs fixed in 0.24.1:

• Added missing gt-cql dependency in server-plugin for supporting dynamic layers (including OSM) - Fixes #293
• Handle empty layer in findClosestEdges - fixes #315