Information Lost by Converting from Dataless to StationXML

Blocklette 30: Data Format Dictionary Blockettes are lost in the conversion between dataless seed and stationxml. There is no concept of a dictionary blockette in stationXML, so this information is discarded.

This document restates, paraphrases, and expands upon information presented in
http://www.fdsn.org/xml/station/Variations-FDSNSXML-SEED.txt written on 2012/12/11.