merge of cmake build files from trunk per beman

svn path=/branches/release/libs/io/; revision=50756
Add basic copyright/license to keep cmake out of the inspection report

svn path=/branches/release/libs/io/; revision=55095
Making svn:keywords match trunk

svn path=/branches/release/libs/io/; revision=56113
rm cmake from the release branch before it goes out broken.  Policy dictates that you never commit to release, you commit to trunk and merge to release.

svn path=/branches/release/libs/io/; revision=56941
Merge warning fix from trunk. Fixes #1414.

svn path=/branches/release/boost/io/; revision=58747
Merge from trunk

svn path=/branches/release/boost/io/; revision=63686
Merge from trunk

svn path=/branches/release/boost/io/; revision=68159
Merge from trunk

svn path=/branches/release/libs/io/; revision=68301