Merged first batch of 1.51 changes for Boost.Graph and Boost.PropertyMap

svn path=/branches/release/boost/thread.hpp; revision=79189
Second batch of Boost.Graph and Boost.PropertyMap changes for 1.51

svn path=/branches/release/boost/thread.hpp; revision=79191
Thread: remove unused file: shared_mutex.cpp 7044

svn path=/branches/release/libs/thread/; revision=79238
Thread: merge from trunk

svn path=/branches/release/boost/thread/; revision=79373
Merged more changes (bug fixes, especially hopefully fixing the VC++ test failure) from trunk

svn path=/branches/release/boost/thread.hpp; revision=79390
Merged bug fix from trunk

svn path=/branches/release/boost/thread.hpp; revision=79393
Thread: Merge from trunk

svn path=/branches/release/boost/thread/; revision=79397
Thread: update changes

svn path=/branches/release/libs/thread/; revision=79408
Merge program_options revisions 79280 and 79283.

svn path=/branches/release/boost/thread.hpp; revision=79758
Merged r79227 from trunk, hopefully fixing all VC++ Boost.Graph Graphviz test issues

svn path=/branches/release/boost/thread.hpp; revision=79771
Merged changes from trunk.

svn path=/branches/release/boost/thread/; revision=79794
Thread: merge fix for #6174

svn path=/branches/release/boost/thread/; revision=80040
Thread: merge from trunk: 1.52

svn path=/branches/release/boost/thread/; revision=80450
Thread: Merged from trunk : 1.52

svn path=/branches/release/boost/thread/; revision=80476
Thread: merge from trunk

svn path=/branches/release/boost/thread/; revision=80516
merged [80550], allowing users to force result_of to use decltype

svn path=/branches/release/boost/thread.hpp; revision=80551
Thread: Merge from trunk

svn path=/branches/release/boost/thread/; revision=80668
Merge bug fixes to release; Fixes #7399 Fixes #7400 Fixes #7401

svn path=/branches/release/boost/thread.hpp; revision=80670
Merge doc fixes to release; Fixes #7244

svn path=/branches/release/boost/thread.hpp; revision=80694
Merged Boost.Graph changes from trunk

svn path=/branches/release/boost/thread.hpp; revision=80740