Chrono: import from Trunk
Chrono: import from Trunk
Chrono: removed pdf file
Chrono: inspect update
Chrono: inspect update
Chrono: Fix #5407 linker error when using boost::chrono in more than one cpp file
Chrono: Merge #5543 and #5549
Chrono: Merge link fixes.

Authorized by Beman.
Merge Intel issue with default bool template initialization  #72938 - Authorized by Beman
Merge 73400 from ^/trunk
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r73400 | jhunold | 2011-07-27 14:16:16 +0200 (Mi, 27 Jul 2011) | 1 line

Enable visibility support. Refs #2114.
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Chrono: update history with fixed tickets
Chrono: minor typo
Chrono: Merged #5976,5979,5978,5906,5907,5909,5946,5974
Chrono: document 1.2 update
Chrono: Merge #5977
Chrono: Merge #5998
Chrono: Merge #5998 - Jamfile and clock_test were forgoten in the preceding commit
Chrono: Added perf now()
Chrono: update global include.hpp file
Chrono: Add some io tests