POLAR.CHANGES

V.2.0.0 2016-11-16: Python 3, use of Fedcatalog and adoption of PEP 8 style guide
V.0.6.5 2017-01-18: support for reading data and metadata from files only with no Internet requirement
V.0.6.0 2016-11-01: added support for obtaining channel responses from local station XML response files by introducing the following two functions in tsLIB.py:
                       getResponseInventory - to build a list of response inventories under a given met directory
                       getResponseFromFile - to find response for a given Network, Station, Location cnd channel
                       added respDirectory to common.py parameter file to disable looking for response files on local drives, set this parameter to None. Otherwise, set it to the response directory path
V.0.5.1 2016-01-25: added user and password parameters to common.par and ntk_computePSD.py in support of restricted data access
V.0.5.0 2015-09-15: Beta release