HTTP GET /database: added index information
Improved performance of Dijkstra and shortest path algorithms
Merge branch 'develop' of https://github.com/orientechnologies/orientdb into develop
Select: supported usage of TIMEOUT keyword even without FROM clause
Graph: supported any collections to manage edges
Fixed issue #1994: created new subclasses to manage vertex and edge types
Fixed issue #1996 about supporting inheritance on edge traversing
OFetchHelper: maintain support for fieldValue of type OMultiCollectionIterator (via Iterable interface)