tested exporting into .svg for topic transition - seems to work fine? (see...

tested exporting into .svg for topic transition - seems to work fine? (see test.svg); normal page has pnml_type PageNode, so its unclear if this was supposed to be the NodePage type or just normal pages, which are a type of nodes? in case this is just a renaming problem, the issues #6 and #4 are not really issues at all, otherwise only a new page type has to be declared that is basically just another page.. I will be seeing to the remaining problems: issue #2 is a huge hazard, the package was build from an examle without renaming the actual package and references, so now it is hard to see, which references are to actual other packages and which ones were just copied blindly