Add mirrored and pdf versions of the logo.
Store array metadata using HDF5 datasets instead of attributes.  Closes #119.
Remove testing scripts.
Disable internal timeseries model computation.  See #117.
Eliminate our concurrent.futures dependency.  See #116.
Restore parallel HDF5 timeseries generation.
Stub-out a choice of distance metric for the timeseries model, and expand the default content for the description field.
Merge branch 'master' into timeseries-performance