Starting to work on distributed hash map
Adding distributed_metadata_base
More work on unordered_map, non-functional, still
Merge branch 'fixing_1315' into distributed_unordered_map
Merge branch 'master' into distributed_unordered_map
Fixing name of included file
Introducing new iterators for hpx::vector, local iteration now always on native std::vector::iterators
Cleaning up things
More cleanup
Addressing latest problems in #1315

This patch fixes issues with resolving locality address information. Tested with 512 nodes.
Adding benchmark for distributed for_each, more cleanup
Merge branch 'master' into distributed_unordered_map
Removing files related to unordered map
Removing more files related to unordered map
Fixed #1330: Defining Plain Actions does not work as described in the documentation
Some ambiguous calls of map::erase have been prevented by adding additional check in locality constructor
TTI's has_type has been changed to MPL's has_xxx for checking iterator
decay has been applied to exact template parameter
0 == v.size() --> v.empty()
Merge pull request #1329 from STEllAR-GROUP/distributed_vector_cleanup

Distributed vector cleanup