Ruby gstreamer0.10 0.2.0:
  
  * Various refcounting issues have been fixed.

  API changes/additions:
    * Gst::Pad#link returns a Gst::Pad::LinkReturn instead of a boolean
    * Gst::Pad#>> can be used to link pads together (Returns
      the destination pad on success or nil on failure)
    * Gst::Element#base_time and Gst::Element#base_time= were added to bind   
      gst_element_get_base_time and gst_element_set_base_time 
    * Gst::Object#parent was added to bind gst_object_get_parent
    * Gst::MiniObject#flags was added to get the flag of a GstMiniObject. 
    * Gst::Buffer#flags was added to get the flags of a GstBuffer. 
    * Gst::Pad#unlink returns a boolean indicating if the pads we're
      succesfully unlinked instead of self.
    * Gst::Element#unlink was added to bind gst_element_unlink
    * Gst::Element#unlink_pads is deprecated use Element#unlink instead!

