Bump version, update release notes

Fix loading of user-defined point-based boxes, segments and rays

Update readme, bump version to 0.54

Prevent exception in DrawLine for meridians

Reject coordinates out of drawing bounds

Update 0.52 release notes

Update 0.51 release notes

Update readme

Bump version 0.34, update release notes

Prevent null ptr exception caused by clicking on variable color of em…

…pty line after deleting the existing variable name on the list in Geometry and Plot Watch.

Bump version 0.32, add release notes.