To support Intel Fortran, CMake started using devenv and VCExpress
for build tools with VS2010. However, VCExpress does not always work.
This change makes CMake use MSBuild when devenv is not found. This should
be OK, since Intel Fortran can not be used with VCExpress.
This adds copyright/license notification blocks CMake's non-find
modules. Most of the modules had no notices at all. Some had notices
referring to the BSD license already. This commit normalizes existing
notices and adds missing notices.
Bill Hoffman
Todd Gamblin
Brad King