tinyTiM Map I/O 2.0.0a5 released

* JTMTopicMapReader / JTMTopicMapWriter implement the new JSON Topic Maps
specification (<http://www.cerny-online.com/jtm/1.0/>
* LTMTopicMapReader: Configurable reification handling

Bugfixes:
---------
* XTM 2.0 importer sets the reifier of a merged-in topic map to
the master topic map. Correct behaviour: Just import the topic but
loose the reified topic map.
* Validation of XTM 1.0 and 2.0 sources against a RELAX-NG schema
did not work in all cases, fixed in "semagia-mio-xtm-0.9.4.jar"
* XTM 1.0 <mergeMap/> didn't work, fixed
* Bug #2560821 -- XTM 1.0 serializer uses wrong element for type
reported by Jens Rummler
* Bug #2540490 -- Using QName in isa/ako throws syntax error
(CTM libs) reported by Stefan Kesberg
* XTM 1.0 writer forgot to add a <variantName/> element to the output.