Fix python module path

Created by: chuckatkins

Replaces #282

CMakeLists.txt

@@ -177,6 +177,14 @@ if(ADIOS2_HAVE_Fortran)
   message("")
 endif()
 message("  Installation prefix: ${CMAKE_INSTALL_PREFIX}")
+message("        bin: ${CMAKE_INSTALL_BINDIR}")
+message("        lib: ${CMAKE_INSTALL_LIBDIR}")
+message("    include: ${CMAKE_INSTALL_INCLUDEDIR}")
+message("      cmake: ${CMAKE_INSTALL_CMAKEDIR}")
+if(ADIOS2_HAVE_Python)
+  message("     python: ${CMAKE_INSTALL_PYTHONDIR}")
+endif()
+message("")
 message("  Features:")
 if(BUILD_SHARED_LIBS)
   set(msg_lib_type "shared")