Committing minor updates to my DTK fork that enable building Moose with DTK and Moab 4.6. Changes are minor and include converting unused boost/tr1/unordered_map.hpp inclusions to tr1/unordered_map for compatibility with Moose, and separating the function DataTransferKit::createSearchTree into a just a declaration in DTK_CloudSearch.hpp and an implementation in a new DTK_CloudSearch.cpp to squash multiple declaration errors in Moose build.