Create interface filter
Merge branch 'master' into interface-filter
Use a better example for interface documentation and tests
Merge branch 'master' into interface-filter
Add translation for interface filter
Update changelog
Merge pull request #182 from orgsync/interface-filter

Add interface filter
Merge branch 'master' into v1.3.0

Conflicts:
	CHANGELOG.md
Fix #196; add type_check callback
Add tests for type_check callbacks
Rename "type_check_inputs" to "type_check"

This way the function name matches the callback name, like execute.
Add more extensive callback tests
Don't use new "%i[...]" syntax
Merge branch 'master' into v1.3.0
Register interface filter
Merge branch 'v1.3.0' into issue-196
Merge branch 'master' into v1.3.0
Merge branch 'master' into v1.3.0
Merge branch 'master' into issue-196
Use new RSpec 3 matchers