libgsf 1.14.12

Andreas:
	* Also read user defined OpenDocument metadata

Christian Persch:
	* Fix allocation method problem.  [#579155]

J.H.M. Dassen (Ray):
	* Fix incorrect use of g_enum_register_static which broke
	  documentation generation in some environments.
	  [http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39015]

Jody :
	* Handle small-block files that are not block aligned. [#572290]
	* Deprecate gsf_timestamp_parse and replace it with
	  gsf_timestamp_from_string.
	* Gtk-Doc fixes.
	* Fix handling of namespace declared default and prefix.
	  (Such as in SpreadsheetML-2003)

Morten:
	* Handle malformed xml better.  [#568994]
	* Drop characters that xml 1.0 cannot represent.  [#568919]
	* Fix problem loading zero-sized files.  [#580228]

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