Create a branch for autoprefixing

SVN-Revision: 59996
Initial work on autoprefixing

SVN-Revision: 59998
Make scaling by x^0 a no-op

SVN-Revision: 60069
Autoprefixed test added

SVN-Revision: 60148
Autoprefixed more tests added

SVN-Revision: 60179
Autoprefixed yet more tests added, and comments.

SVN-Revision: 60193
added tests for scalars - not autoprefixed.

SVN-Revision: 60378
Draft of autoprefixes.cpp examples.

SVN-Revision: 60382
Added autoprefix and added more comments.  \detailed changed to \details to satisfy Doxygen.

SVN-Revision: 60431
Typo in comment

SVN-Revision: 60433
Added autoprefix and added more comments.  \detailed changed to \details to satisfy Doxygen.

SVN-Revision: 60435
\detailed changed to \details to satisfy Doxygen.

SVN-Revision: 60448
\detailed changed to \details to satisfy Doxygen.

SVN-Revision: 60449
reverted kitchen sink.cpp link.

SVN-Revision: 60477
Cut the number of template instantiations

SVN-Revision: 60521
Fix tests for gcc

SVN-Revision: 60522
Added thing_base_unit and euro_base_unit examples.

SVN-Revision: 60612
Doxygen file info updated.

SVN-Revision: 60653
Doxygen file info updated.

SVN-Revision: 60654
Revert spurious changes

SVN-Revision: 60676