goffice 0.7.5:

Jean:
	* Fixed gconf and gmathml propagation to pc file. [#576497]
	* Added a new plot type: GogColorPolarPlot.

Jody:
	* Use priority when looking up savers by extension or mime.

Morten:
	* Add new go_format_is_time function.
	* Pick sane bounds for time-formatted axes.  [Part of #574681]
	* Pick sane bounds for date-formatted axes.  [Part of #574681]
	* Add magic date and time formats.

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