Added ref folding creation overloads
Disable binding ref to temporaries when rvalue references are supported
Merge pull request #6 from K-ballo/ref-do-not-bind-to-temporaries

Disable binding ref to temporaries when rvalue references are supported
Copyright and cosmetic fixes.
Added negative tests for rvalue to reference_wrapper implicit conversion.
More cosmetic fixes in ref tests.
Add negative tests for cref() and rvalues.
Add a test for ref(ref(x)).
Switch ref_ct_test to core::is_same.
Add boost::report_errors to ref_ref_test.
Add report_errors_remind to some passing tests.
Copy ref_fn_test from libs/bind.
Minor documentation updates.
Update documentation.
Documentation updates.
Work around msvc-10.0 ref_fn_test failure.
Documentation tweaks.

1. Changed scoped_enum.qbk so that it's compatible with QuickBook 1.6.
2. Added Doxygen predefined macros to improve quality of the generated reference sections.
Added BOOST_GPU_ENABLED to Doxygen predefined macros.
Added missing copyright comments. Corrected links to the documentation on the comments.
Corrected documentation copyrights based on git history.