Merge pull request #1 from megies/master

cleanup stream after fetching
Merge pull request #2 from megies/master

trace ids have to be mapped during seishub request
Removing user agent hack. Google maps has been updated.
QUrl creation should now work with newer Qt versions.
fixes a bug in Mw from M0 calculation
Merge pull request #3 from megies/mwm0_bug

fixes a bug in Mw from M0 calculation
adding automated routine
automatic routine changes:

- safer finding/reading of waveform data (multichannel files etc.)
- avoid problems with station metadata with multiple epochs
- safer PAZ retrieval from station metadata
automatic routine: allow multiple catalog files
automatic routine: plot more relations from literature
automatic script: more waveform padding to avoid artifacts in processing
automatic script: skip events without origin or magnitude
automatic script: only use valid Ml/Mw pairs in fitting