Log PROJECT_SOURCE_DIR and PROJECT_BINARY_DIR.
Fix inclusion of python.cmake file

  Using PROJECT_SOURCE_DIR instead of CMAKE_SOURCE_DIR as the root of the cmake
  directory is more robust.
Added new inclusions in PYTHON_INSTALL and PYTHON_INSTALL_BUILD macro
      Replaced CMAKE_SOURCE_DIR to PROJECT_SOURCE_DIR;
               CMAKE_BINARY_DIR to PROJECT_BIN_DIR
Merge pull request #31 from nemogiftsun/master

catkin_make compatibilty