Changelog: slk_helpers v1.5.8

Update from slk_helpers v1.5.7 to v1.5.8

see here for changes from slk_helpers v1.2.x to v1.5.7

All Fixes and new features

• fixed errors related to processing of JSON returned by StrongLink

• restructured code

Changelog slk v3.3.75   Changelog slk v3.3.76