- Integratec07bba2730 (diff-1e2deb5301e9481203102fcddd1b2d0d2bf0ddc1cbb445c7f4b6414a3b869ce8)so that the default man directory is <CMAKE_INSTALL_PREFIX>/share/man on FreeBSD systems. - For good measure, integratef835f189aeso that the default info directory is <CMAKE_INSTALL_PREFIX>/share/info on FreeBSD systems, even though we don't use that directory. - Automatically set the CMake variable type to PATH for any user-specified CMAKE_INSTALL_*DIR variables. Addresses concerns raised in #326, #346, #648 Closes #648