quick hack
Merge branch 'devel' of ssh://github.com/triAGENS/ArangoDB into aql-feature-lazy-index
working except for 1 test.
getting tests to work
changed to number of blocks pulled by default by CalculationBlock and ExecutionBlock
Fixed aardvark router test
Fixed user management view test
Fixed document view tests
removed empty files
Tell ClusterComm about the dispatcher.
Choose place to tell dispatcher more sensibly.
added blockThread and unblockThread
Add thread local static variable for current DispatcherThread.
Cleanup code after making dispatcher elastic.
Merge branch 'devel' of ssh://github.com/triAGENS/ArangoDB into aql-feature-lazy-index

Conflicts:
	arangod/Aql/ExecutionNode.h
some more cleaning up of replace-OR-with-IN
bug fix
another test for replace-or-with-in
replace-redundant-OR optimizer rule first version.
correct logic.