Obspyck

- start up obspyck even if pluginpath is not a valid directory (see 91)
- fix spectrogram plot (correct the offset adjustment, see 92)

- avoid error when special use case key `test_event_server_jane` is not
present (see 71)
- add possibility to specify complex, time-dependent station combinations
(see 73)
- avoid errors when encountering arrivals without a residual time (see 52)
- add experimental option for reviewing all picks in a given catalog (as
opposed to normal operation which only considers the first event in a loaded
catalog file, see 50)
- enable opting for physical unit conversion switch to go to displacement or
acceleration (so far always was converting to velocity; see 43)
- use obspy read_inventory() and Inventory/Response objects internally for
all metadata, regardless of source (see 77)
- reimplement AR picker (see 75)
- make reference time given on command line the zero-time on time axis always
(so far if an offset was given the zero time was equal to reference time
plus offset, see 78)
- save raw waveform data and station metadata in current obspyck instance's
temporary directory for easy reuse (see 79)
- taper settings (applied before any filtering) can now be controlled via
config file (see 80)
- speed up magnitude calculation by reusing unchanged station magnitudes when
updating the network magnitude while changing magnitude picks on one station
(see 88)

- fix getting metadata via arclink (see 65)
- make it possible to set default filter corners via config file (see 66)
- enable parallel event upload/replacement/deletion on seishub and jane
(see 67)
- fix Qt application Window icon (see 68)

- add support for magnitude estimation for data fetched from an FDSN server
(using full response)
- depending on obspy >=1.1.0 now
- add support for scrolling along time axis with mouse wheel + modifier
(by default "alt" key, see 45)
- fix station metadata output in hypo71 format (for location routines)
for longitude <0 (see 47)
- fix horizontal errors read after hyp2000 location (conversion from km to m
was missing, see 48)
- add possibility to use other phase names besides the default "P" and "S" in
picking. this is highly experimental, especially when using location
routines most internals are very likely still using hard coded "P" and "S"
values, but for picking and saving to QuakeML only this reportedly works
(see 36).
- also show picks in the GUI that lack location code in the corresponding
QuakeML file (but such picks will not be associated to any one of the
Stream's axes, so it will not be possible to modify or delete them via the
GUI, see 49 and 51)

- fix minor bug that prevents 0.4.0 from running
- switch obspy dependency version from >=1.* to >1.0.3 (the import reroutes in
obspy 1.0.x break the monkey patching of event object classes in obspyck)

- add support for fetching data from a seedlink server
- set meaningful creation info including obspyck+obspy version numbers on all
event objects
- fix a bug with beachball function naming in 0.3.0 (likely to lead to
RunTimeErrors)