Changed OLAP/Fulgora to reflect TP3 interface and design philosophy.
Fixed OLAP test case after refactoring.
Merge branch 'titan05' of https://github.com/thinkaurelius/titan into titan05
Merge branch 'titan05' of https://github.com/thinkaurelius/titan into titan05
Added single-source-shortest OLAP test and fixed discovered bug