0.9.6 (unstable):

* Added Gst::init() with no arguments to fix bug #539059.
  (José Alburquerque)
* Added BaseSink.
* Added BaseSrc.
* Added BaseTransform.
  (José Alburquerque)
* Bin:
  - Make add() throw an exception, needed for chaining. 
    (Murray Cumming)
  - Added get_children() and get_num_children().
    (José Alburquerque)
* Caps: Added set_simple().
  (José Alburquerque)
* Added ColorBalance and ColorBalanceChannel.
  (José Alburquerque)
* ElementFactory:
  - Rename create() to create_element() 
  and add an override that takes no name.
  (Murray Cumming)
* GhostPad: Corrected the constructor implementations.
  (José Alburquerque
* Message: Implement MessageInfo::parse() and add a 
  method overload without the debug parameter.
  (Murray Cumming)
* Pad, PadTemplate: Corrected the constructor implementations.
  (José Alburquerque)
* Added PushSrc
  (José Alburquerque)
* Structure:
  - Simplified memory management.
  - Added several set_field() method overloads.
  - Renamed get_*() to get_field(), and made them take actual types.
    (Murray Cumming, José Alburquerque)
  - Added get_*_error_quark().
    (José Alburquerque)
* TagList:
  - Simplified memory management.
    (Murray Cumming)
  - Added add/get methods.
  (José Alburquerque)
* TagSetter:
  - Added add_tag(), get_tag_list(), set_tag_merge_mode(), and get_tag_merge_mode().
  - Added default value for merge_tags() mode parameter.
  (José Alburquerque)
* Const corrections.
  (Murray Cumming, José Alburquerque)
* Documentation Improvements
  (José Alburquerque)