made the interpolation more robust by treating the negative angles
added link to Version 2.0.0
updated cylinder properties
changed default for ignore_bot_h and ignore_top_h
fixed half-cosine imperfection... it was inverted
added possibility to save the .npz file without plotting
used the same convention to indicate if the meridian starts at bottom or top
added interp_polar function
changed from np.interp to interp_polar
fixed the function to be based on sorting
replaced interp_polar by interp, greatly improved interpolation algorithm
improved interp
ENH: improved roubustness by using normalized alpha and beta and less penalty to points outside the cylinder in z
Merge pull request #1 from desicos/v2

V2