[mkgmap-dev] [PATCH v1] Handle multipolygons with tags not addressed in style

The patch handles the problem reported by Minko (http://www.mkgmap.org.uk/pipermail/mkgmap-dev/2012q4/015287.html). It adds the tag mkgmap:tagsincomplete=true to all mps where tags are not loaded because they are not addressed in the style file. The mp algorithm uses the tag to decide if the tags must be taken from the outer ways or from the mp itself. WanMil