"apply_tag" needs not be virtual anymore.
"apply_tag" needs not be virtual anymore.

Now that unscoper is gone, "apply_tag" can be non-virtual.

	* src/scheduler/tag.hh (apply_tag): Make non-virtual.

aldebaran/libport,aldebaran/libport,aldebaran/libport,aldebaran/libport,aldebaran/libport