qubes/vm: handle VM toplevel directory in QubesVM object not Storage

This directory is not only for disk images (in fact disk images may be
elsewhere depending on choosen volume pool), so it would be cleaner to
handle (create/remove) it directly in QubesVM class.

qubes/storage/__init__.py

@@ -149,8 +149,6 @@ class Storage(object):
 
         old_umask = os.umask(002)
 
-        self.log.info('Creating directory: {0}'.format(self.vm.dir_path))
-        os.makedirs(self.vm.dir_path)
         for name, volume in self.vm.volumes.items():
             source_volume = None
             if source_template and hasattr(source_template, 'volumes'):
@@ -195,6 +193,7 @@ class Storage(object):
             Errors on removal are catched and logged.
         '''
         for name, volume in self.vm.volumes.items():
+            self.log.info('Removing volume %s: %s' % (name, volume.vid))
             try:
                 self.get_pool(volume).remove(volume)
             except (IOError, OSError) as e:

qubes/vm/qubesvm.py

@@ -1092,6 +1092,9 @@ class QubesVM(qubes.vm.mix.net.NetVMMixin, qubes.vm.BaseVM):
             # pylint: disable=no-member
             source_template = self.template
 
+        self.log.info('Creating directory: {0}'.format(self.dir_path))
+        os.makedirs(self.dir_path, mode=0o775)
+
         self.storage.create_on_disk(source_template)
 
         self.log.info('Creating icon symlink: {} -> {}'.format(