Add test for using concatenated properties with functions
Close #3307 – Fix unexpected behavior with functions in concatenated properties
Fix grammar in CONTRIBUTING.md
Improve docs for CoreObject#concatenatedProperties
components should declare actions in the actions hash
Merge pull request #3336 from sly7-7/component-doc-update

update docs to reflect that components should declare actions in an `actions` hash
Merge pull request #3339 from mbixby/master

Close #3307 – Fix unexpected behavior with functions in concatenated properties