update changelog

Merge pull request #114 from embedded-office/develop

Rollback of 32bit direct storage in 16bit machines

Merge pull request #112 from embedded-office/develop

release v4.3.0

release v4.2.0 (PR #94)

release v4.2.0

remove tiny warnings in testsuite

Merge pull request #57 from embedded-office/feature/user-abort-codes

Introduce user defined SDO abort codes in type functions (fix #56)

Merge pull request #55 from embedded-office/feature/update-2021-07

finish feature/update 2021 07

Merge pull request #38 from embedded-office/feature/optional-emcy

Fix #36 improve quickstart example and allow disabling EMCY

Finish v4.1.4

Merge pull request #26 from embedded-office/feature/sw-lifecycle

Release maintenance update v4.1.3