Chrono: inhibit variadic-macros warning.

svn path=/trunk/libs/chrono/; revision=82945
Chrono: Added BOOST_FORCEINLINE on duration,time_point constructors for TI compiler.

svn path=/trunk/boost/chrono/; revision=83509
Chrono: avoid memory leak.

svn path=/trunk/boost/chrono/; revision=83510
Chrono: Added thread-safe doc for now().

svn path=/trunk/libs/chrono/; revision=83511
Chrono: Apply patch for 8370.

svn path=/trunk/libs/chrono/; revision=83813
Chrono: comment version 2 setting when building v1_ tests.

svn path=/trunk/libs/chrono/; revision=83841
Chrono: use libc++ constexpr if _LIBCPP_CONSTEXPR is defined #8367.

svn path=/trunk/boost/chrono/; revision=83842
Chrono: cleanup.

svn path=/trunk/boost/chrono/; revision=83843
Chrono: Apply patch for #8435.

svn path=/trunk/boost/chrono/; revision=83896
Chrono: updated history.

svn path=/trunk/libs/chrono/; revision=83897
Chrono: apply patch for #8435.

svn path=/trunk/boost/chrono/; revision=83899
Marked four constexpr methods as const in preparation for C++1y; Refs #8604

svn path=/trunk/boost/chrono/; revision=84411