Add setting to config dist
Make stack panel switchable
Make 'select from stack' button switchable
Make 'place on stack' button switchable
Add sniff to check variable naming
Merge pull request #2341 from rarila/variable-name-sniff

Add sniff to check variable naming
rename "general/interface/…" to "general/backend/…"
Update changelog
Merge pull request #2340 from rarila/stack-disable

Option to disable stack usage