v0.5.0
 * Add Drawing.AddDirectionFromCoM
 * Change Drawing.AddDirection to start the line at the origin of the reference frame (#518)

v0.4.8
 * Fix reference frames for AddDirection so that the line always starts at the active vessel's CoM (#486)

v0.4.0
 * Make Test.AvailableFonts a static method

v0.3.4
 * Initial version (#253)
