merge [77446] from trunk

svn path=/branches/release/boost/date_time/; revision=77447
merge  [77417],[77437],[77422],[77587] from trunk

svn path=/branches/release/boost/date_time/; revision=77589
merge [77416] from trunk, fixes #6131, fixes #6455

svn path=/branches/release/boost/date_time/; revision=77591
Merge: Allow to specify how option's value is named in help message.

Fixes #4781.

svn path=/branches/release/boost/date_time/; revision=77932
Mark some changes as merged.

svn path=/branches/release/boost/date_time/; revision=78336
Merged bug fixes for Boost.Graph and Boost.PropertyMap from trunk

svn path=/branches/release/boost/date_time/; revision=78639
Merged in more trunk bug fixes for Boost.Graph and Boost.PropertyMap

svn path=/branches/release/boost/date_time/; revision=78641
Merged warning fixes from trunk

svn path=/branches/release/boost/date_time/; revision=78652
Merged first batch of 1.51 changes for Boost.Graph and Boost.PropertyMap

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

svn path=/branches/release/boost/date_time/; revision=79191
Merged more changes (bug fixes, especially hopefully fixing the VC++ test failure) from trunk

svn path=/branches/release/boost/date_time/; revision=79390
Merged bug fix from trunk

svn path=/branches/release/boost/date_time/; revision=79393
Merge greg_year serialization changes to release; fixes #3633

svn path=/branches/release/boost/date_time/; revision=79539
Merge program_options revisions 79280 and 79283.

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

svn path=/branches/release/boost/date_time/; revision=79771
Merge doc typo corrections to release; fixes #6595; fixes #7182

svn path=/branches/release/libs/date_time/; revision=80057
merged [80550], allowing users to force result_of to use decltype

svn path=/branches/release/boost/date_time/; revision=80551
Clean up the date_time merge metadata.

svn path=/branches/release/boost/date_time/; revision=80628
Merge some old datetime changes to release

- [70756] Convert jamfile for examples to boost build v2.
- [79211][79212] Suppress g++4.6 warnings in tests.
- Document NO LIB option. Fixes #6077.

svn path=/branches/release/libs/date_time/; revision=80629
DateTime: merge [80051]

svn path=/branches/release/boost/date_time/; revision=80648