Merging CMakeBBP into CMake.
Reset components for subsequent find_package
Move Doxygen-specific variable to DoxygenRule.cmake.
Merge pull request #216 from tribal-tec/master

Reset components for subsequent find_package
Merge pull request #215 from rdumusc/osg

Merging CMakeBBP into CMake.
Changes needed for sub project integration
Merge branch 'master' of https://github.com/eile/CMake