CHANGES
*******

Release 0.1.7
~~~~~~~~~~~~~
    
    * Added cross-correlation 
    * Added (some) unit tests
    * New interactive slider widget for manipulating models (Spectrum.specfit.add_sliders())
    * Subtle but very significant bug-fix: parinfo is now a single uniform
      list, based on the ParinfoList class.
    * You can now fit based on what you see by using the 'use_window_limits=True' kwarg
      .. warning:: This changes the default behavior in interactive mode!
    * lmfit-py can now be used for fitting via the 'use_lmfit' kwarg
    * BUGFIX: SpectroscopicAxis can be converted between units even when scalar
    * velocity frames are read from FITS headers following the VELDEF conventions

Release 0.1.6 
~~~~~~~~~~~~~

    * H2CO fit / plot wrapper
    * bugfixes
    * setup.py no longer tries to write config files

Release 0.1.5 
~~~~~~~~~~~~~

    * Added GBT (GBTIDL SDFITS file) and ALFALFA (ALFALFA idlsave .src) readers
    * added extinction model (just a function, not a complete model yet)

Release 0.1.4 
~~~~~~~~~~~~~

    * removed setuptools & distribute (they fail)
    * added hydrogen.py to models
    * first release to inherit from astropy's Spectrum1D

Release 0.1.3 
~~~~~~~~~~~~~

    * some internal cleanup / refactoring
    * override slicing (__getitem__ features)
    * parallel moment & fitting in Cubes repaired

Release 0.1.2 
~~~~~~~~~~~~~

    * added MIT license, moved mpfit and parallel_map inside pyspeckit as
    * submodules

Release 0.1.1 
~~~~~~~~~~~~~

    * bugfixes and versioning work

Release 0.1.0 
~~~~~~~~~~~~~

    * Initial creation
