Starting point for releases
Full merge from trunk at revision 41356 of entire boost-root tree.
Full merge from trunk at revision 41356 of entire boost-root tree.
Merge from trunk:
Tolerate argc being zero.

Patch from C. K. Jester-Young.
Clarify docs. Fixes #1530.
Add example of zero_tokens
Don't hardcode cout.

Suggested by Guido Ziliotti.
Merge r43992
Merge from trunk. No code changes, only properties and docs and examples
merge of cmake build files from trunk per beman
Merge PDF build changes from Trunk.
When processing value multitoken options, don't eat futher options.
Fixes #469.
Merge from trunk
Fix warnings
Prevent multitoken options from eating tokens after '--' separator.

Thanks to Gevorg Voskanyan for the bug report and the testcase.
Fix CMake test builds for ProgramOptions and Units libraries.
Fix CMake build of Program Options DLL tests
Fixed almost all tab and min/max issues found by inspect tool
Merge from trunk
Add basic copyright/license to keep cmake out of the inspection report