v0.3.4

KiteModels v0.3.4

Diff since v0.3.3

Closed issues:

• Add functions orient_euler() and kite_ref_frame() (#27)
• Add functions calc_heading(s) and calc_course(s) (#28)
• Add functions kite_pos(s), calc_elevation(s), calc_azimuth(s) (#29)