Bump version to 1.6.2. Update changelog.

Update changelog latest date; Update software versions in readme.

Bump version to 1.6.0;

Change about text description from "Virtual" to "Digital Keyboard Workstation";
Bump some copyright years to 2024;
Update changelog.

Bump version to 1.5.0 in source and changelog;

Update API text with line breaks to better accomodate display width.

Update Carla version number in readme.

Bump version to 1.3.1 and update changelog.

Bump version to 1.3.0;

Update readme wording, formatting and package versions;
Add missing license to top of some files.

Bump version number to 1.3.0-beta1.

Bump version number to 1.2.3; Update changelog.

Bump version to 1.2.2 and year to 2023. Update changelog and readme.