Fri, 27 Apr 2012 23:17:58 +0200 wenzelm merged
Fri, 27 Apr 2012 22:58:29 +0200 wenzelm prefer Context_Position.report_generic, which observes is_visible flag and thus reduces number of echos;
Fri, 27 Apr 2012 22:47:30 +0200 wenzelm clarified signature;
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