Wave: merging from trunk

svn path=/branches/release/boost/wave/; revision=79689
Wave: merging bugfixes from trunk, signed off by Eric

svn path=/branches/release/boost/wave/; revision=79840
Wave: merging from trunk

svn path=/branches/release/boost/wave/; revision=80760
Wave: merging from trunk

svn path=/branches/release/boost/wave/; revision=80762
Wave: merging from trunk

svn path=/branches/release/boost/wave/; revision=81798