unix: refactor library paths

projects/unix/cmb.bundle.unix.cmake

+set(library_paths
+  "paraview-${paraview_version}"
+  "cmb-${cmb_version}")
+
 set(plugins)
 foreach (executable IN LISTS paraview_executables cmb_programs_to_install)
   superbuild_unix_install_program("${executable}"
-    "paraview-${paraview_version};cmb-${cmb_version}")
+    "${library_paths}")
   list(APPEND plugins
     ${cmb_plugins_${executable}})
 endforeach ()
@@ -11,7 +15,7 @@ list(REMOVE_DUPLICATES plugins)
 foreach (plugin IN LISTS plugins)
   superbuild_unix_install_plugin("lib${plugin}.so"
     "cmb-${cmb_version}"
-    ";paraview-${paraview_version};cmb-${cmb_version}"
+    ";${library_paths}"
     "cmb-${cmb_version}/plugins/")
 endforeach ()
 
@@ -36,8 +40,7 @@ superbuild_unix_install_python(
           "${superbuild_install_location}/lib/python2.7/site-packages"
           "${superbuild_install_location}/lib/paraview-${paraview_version}/site-packages"
   SEARCH_DIRECTORIES
-          "cmb-${cmb_version}"
-          "paraview-${paraview_version}")
+          ${library_paths})
 
 superbuild_unix_install_python(
   "${CMAKE_INSTALL_PREFIX}"