create release v5.2.0 (merge branch 'develop')

create release v5.1.0 (merge branch 'develop')

create new release 5 (merge branch 'develop')

change case for 'arm7' port files

Added example of using suspended perocesses.

Version number and copyright years updated.

Created tag for version 4.00.

Created tag for version 3.11.

Version number and copyright years updated.

Created tag for version 3.10.