CHANGELOG

v1.3.2
======

    %  [FIX] ensure matplotlib backend fallback mechanism remains active
             despite explicit call to `matplotlib.use`, which otherwise leads
             to failures if the backend is not available (or when running in
             headless mode)
    %  [FIX] move imports of `matplotlib.pyplot` to plot methods to avoid
             importing them prematurely
    %  [FIX] handle deprecation of axis suffixes for keyword arguments
             passed to constructors of axis scale objects starting with
             matplotlib 3.3.0 (e.g. now specify `base` instead of
             `basex`/`basey` for LogScale)
    %  [FIX] replace matplotlib call to 'inverse_transformed' completely
             by equivalent 'transformed(transform.inverted())'
    %  [FIX] use 'Legend.set_draggable(True)' and fall back to deprecated
             'Legend.draggable()' on failure for backwards compatibility.

v1.3.1
======

    %  [BUG] use line-buffering and flush buffers on stream to make sure
             all output is written out correctly on Python 3

v1.3.0
======

    %  [NEW] make code compatible with both Python 2 and 3
    %  [NEW] add support for fits with correlated constraints
             (example 11 added)
    %  [NEW] add support for multi-model fits with shared parameters
             (example 13 added)
    %  [NEW] matplotlib 2.0 is now supported

    %  [REQ] require numpy version 1.11.2
    %  [REQ] require scipy version 0.17.0
    %  [REQ] require iminuit version 1.2
    %  [REQ] drop requirement for Qt (difficulty with conda):
             make Tk the default backend

    %  [BUG] fixed bugs related to output stream redirection
    %  [FIX] running kafe in Jupyter Notebooks should now work
    %  [DOC] update documentation of examples

v1.2.0
======

    %  [NEW] add support for fits with correlated constraints
    %  several bugfixes

v1.1.0
======

    %  [FIX] improved syntax of general inputfile, as used in example 8.
       Several limitations have been removed: the fit function can now
       have any name (not just 'fitf'), and indenting can now be done
       with whitespace instead of '~'
    %  [NEW] added keyword `plotstyle` to kafe.Plot(), which allows
       to use user-defined instance of kafe.PlotStyle()
    %  [NEW] replaced deprecated matplotlib set_color_cycle() with
       set_prop_cycle(). This breaks compatibility with matplotlib versions
       older than 1.5


v1.0.1
======

    %  [BUG] in fit.py (color name "darmagenta" -> "darkmagenta")
    %  [FIX] for matplotlib vers. 1.5.x : bbox parameters in plot.py
    %  [NOTE] set_color_cycle in fit.py is deprecated in matplotlib 1.5,
       but still works. prepared for using set_prop_cycle (enabling this
       would break 1.3 compatibility)

v1.0.0
======

    % [NEW] `ErrorSource` object: Datasets no longer contain
      a single covariance matrix, but a list of ErrorSource
      objects.
    % [NEW] `Dataset` objects can now be created empty, allowing
      data and error model to be added later. [ ]
    % 'prepared' fit.py to replace 'set_color_cyle' by 'set_prop_cycle'

v0.5.2
======

    % [NEW] get_function_error() method added to Fit object
    % [CODE] Plot object now uses Fit.get_function_error() to draw
      confidence bands
    % [NEW] customization of program behaviour is now done via
      config files in "~/.config/kafe/kafe.config"
    % [NEW] changed default fonts to Palatino and Helvetica
    % [NEW] moved axis labels to the ends of the axes and made
      them default to bold
    % [NEW] tinkered with the Fit Infobox: in iteractive view it now
      resizes to fit the legend box width.
    % [BUG] inserting blank lines in LaTeX with matplotlib doesn't
      work. [WORKAROUND] replace them with em-dashes.
    
v0.5.1
======

    % [DOC] new documentation by Guenter Quast: restructured
      documentation and added Makefiles to build
    % [NEW] new chi2 implementation by Guenter Quast: chi2 can now
      handle constrained parameters via penalty term
    % [NEW] additions to dataset file format by Guenter Quast: file
      format is now "intelligent"/keyword-driven, allowing for better
      customization of fits. Also added relevant methods to
    % [NEW] additions to the function library by Guenter Quast: now
      includes relativistic Breit-Wigner, Lorentz, Voigt and nomalized
      Gauss
    % [BUGFIX] covariance/correlation matrix behavior corrected for the
      case where some parameters are fixed.
    % [BUGFIX] now running Minuit's HESSE method only after the last
      fit in an iteration
    % [FIX] better initial errors, in case no estimates are provided
    % [GIT] repo now has working .gitignore

v0.4.11
=======

    * [BUGFIX] saving plots now saves the correct figure