Move root directory into data/web

* rename root -> data/web:
 * setup.py:
   change install source path
 * wcs/root.ptl:
   add StaticDirectory controller to find static files.

setup.py

@@ -33,7 +33,7 @@ setup(
                 'wcs.qommon.vendor'],
         cmdclass = {'build_py': qx_build_py},
         scripts = ['wcsctl.py'],
-        data_files = data_tree('share/wcs/web/', 'root/') + \
+        data_files = data_tree('share/wcs/web/', 'data/web/') + \
                 data_tree('share/wcs/themes/', 'data/themes/') + \
                 data_tree('share/wcs/qommon/', 'wcs/qommon/static/')
     )

wcs/root.ptl

@@ -216,6 +216,8 @@ class RootDirectory(Directory):
         return forms.root.RootDirectory()._q_traverse(path)
 
     def _q_lookup(self, component):
+        if component in ('css','images'):
+            return StaticDirectory(os.path.join(get_publisher().data_dir, 'web', component), follow_symlinks = True)
         if component == 'qo':
             dirname = os.path.join(get_publisher().data_dir, 'qommon')
             return StaticDirectory(dirname, follow_symlinks = True)