Log Message:
goffice0.10: update to 0.10.48

goffice 0.10.48:

Jean:
	* Avoid serializing empty graph data. [#46]
	* Clip data labels in XY plots. [#47]
	* Don't emit a critical for invalid series in Logarithmic fit. [#49]
	* Optimize GtkWidget embedding in the canvas. See #465.
	* Clip grid lines rendering to the plot area. [#50]
	* Speed up GocGroup for large number of children.  [Gnumeric #465]
	* Make GocGroup usable as a widgetless canvas.

Morten:
	* Avoid critical in document image handling.
	* Introspection fixes.
	* Speed up GocGroup for large number of children.  [Gnumeric #465]
	* Stop checking for Xrender.
	* Plug leaks.