Temporary version of Create DB and Drop DB.
Nearly finished with CreateColl and DropDatabase for coordinator.
Merge branch 'sharding' of ssh://github.com/triAGENS/ArangoDB into sharding

Conflicts:
	arangod/V8Server/v8-vocbase.cpp
Merge branch 'sharding' of ssh://github.com/triAGENS/ArangoDB into sharding