libarea doesn't depend on parts from CMAKE_INSTALL_LIBDIR

Fixes:
 -- Installing: /home/abuild/rpmbuild/BUILDROOT/FreeCAD-0.15.99+git20150727.1925-1.1.x86_64/usr/lib64/FreeCAD/lib/area.so
 CMake Error at src/Mod/Path/libarea/cmake_install.cmake:53 (file):
   file RPATH_CHANGE could not write new RPATH:

     /usr/lib64/FreeCAD/lib

   to the file:

     /home/abuild/rpmbuild/BUILDROOT/FreeCAD-0.15.99+git20150727.1925-1.1.x86_64/usr/lib64/FreeCAD/lib/area.so

   No valid ELF RPATH or RUNPATH entry exists in the file;

cMake/FreeCadMacros.cmake

@@ -236,8 +236,8 @@ MACRO(SET_BIN_DIR ProjectName OutputName)
     if(WIN32)
         set_target_properties(${ProjectName} PROPERTIES DEBUG_OUTPUT_NAME ${OutputName}_d)
     else(WIN32)
-        # FreeCADBase, SMDS, Driver and MEFISTO2 libs don't depend on parts from CMAKE_INSTALL_LIBDIR
-        if(NOT ${ProjectName} MATCHES "^(FreeCADBase|SMDS|Driver|MEFISTO2)$")
+        # FreeCADBase, SMDS, Driver, MEFISTO2 and area libs don't depend on parts from CMAKE_INSTALL_LIBDIR
+        if(NOT ${ProjectName} MATCHES "^(FreeCADBase|SMDS|Driver|MEFISTO2|area)$")
             if(${ARGC} STREQUAL 4)
                 set_target_properties(${ProjectName} PROPERTIES INSTALL_RPATH ${CMAKE_INSTALL_PREFIX}${ARGV3})
             else(${ARGC} STREQUAL 4)