This commit was manufactured by cvs2svn to create branch 'mpl_v2_2'.

svn path=/branches/mpl_v2_2/boost/boost/mpl/; revision=18675
merge latest main trunk fixes

svn path=/branches/mpl_v2_2/boost/boost/mpl/; revision=18769
transform POC

svn path=/branches/mpl_v2_2/boost/boost/mpl/; revision=18773