enabling plotting of picks in dayplot
see #548, different way to handle multiple sampint

this should just show an alternative possibility to handle multiple
sampling rates for obspy-scan.
GSE2 replacing fgets calls to function pointer

* this will allow direct reading of string buffers from python
GSE2: Adding python callback for buffer reading

* also added test on null pointer, could not avoid to the printing of an
  error to stdout
adding decomp_6b_buffer to windows def file
fdsn: setting up new submodule basic structure
fdsn: add key for new FSDN webservice at NCEDC
fdsn: docstring for previous commit
Merge remote branch 'upstream/obspy.fdsn' into obspy.fdsn
URL building for the FDSN submodule.
Added WADL file downloading.
Added WADL parser including tests.
Merge remote-tracking branch 'upstream/master' into obspy.fdsn
Done with WADL parsing.

Now maps the short names of the parameters to their proper long names
when necessary. Furthermore a dynamic help function for the different
services is now available.
Two more WADL files with no given types.
WADL parser can now deal with parameters without types.
Special handling for the USGS event WADL.
Improved error handling.

Added a sensible exception in case no services are being discovered at
the chosen endpoint.
WADL parser now warns if some parameters are missing.
Updated license notes.