Changed obspy array analysis to a more general method based on covariance estimation. Tried to speed up by use of Cython.
improving AttribDict initialization
AttribDict inherits now from collections.MutableMapping
removed unneeded type check
fixing segy test for updated AttribDict class
fixing an arclink example in tutorial
deepcopy of AttribDict should include defaults too
small fix for last commit
some api docs fixes
fixes attribdict test
correcting doc string of a test case
new option node (-n) for obspy-runtests
Merge pull request #466 from obspy/runtests_improvements

new option node (-n) for obspy-runtests
Show only master branch build status
Use -n option instead of setting hostname manually
Move build status image in a more prominent place
some doc fixes
removing unused/initializing vars in C code (see Travis CI logs)
removing 'global signal' construct in obspy.core
refactoring obspy.signal psd to spectral_estimation (fixes #253)