Preparation for travis-ci
added travis-ci build status
playing with travis
obspy can't be installed using conda
trying to make a full workflow test

not sure it's the best way, but should pass...
updated travis example
dependencies, not going to work smoothly
encore...
encore...
encore...
encore...
path check
one step closer
Update .travis.yml

get the latest miniconda release (py 2.7)
Update .travis.yml

bugfix anaconda<->miniconda
update travis setup script

should pass
update test naming
Improved performance & better whitening

* Bugfix: there was a math error in the whiten function. The result is small for the tests I've computed, but this version is now exact. (Thanks to Adrian Shelley for this)
* Performance: as a result, the performance of whiten is much higher
* Performance: if only ZZ is to be computed, the traces are sliced and pre-whitened, which makes a huge difference for large number of pairs (but requires much more RAM !)

TODO:

* Allow to manually disable the "fast mode" (= pre-whitening) if the RAM is an issue
* Allow to define the cosTaper lengths in the general configuration (currently hard-coded), for compute_cc and whiten
Sample Alignment & Better Merge

* Added: new Sample Alignment and merge algorithm
* Code cleaning, PEP8, etc.
Update test procedure