h2def.py: clean_func() also strip *_DEPRECATE_IN_*_FOR () without a space.

* tools/defs_gen/h2def.py: Because clutter has lines such as this:
  CLUTTER_DEPRECATED_IN_1_6_FOR(clutter_actor_animate and ClutterActor:depth)
  without a space after the FOR.
h2def.py: Handle *_DEPRECATED_IN_* and AVAILABLE_IN_* with 0 digits.

* tools/defs_gen/h2def.py: clean_func(): Use 0-9 instead of just
  1-9. clutter's headers showed that this was a problem.
Merge branch 'master' of git://git.gnome.org/glibmm
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