SQSERVICES-547 post/get conversation/:cnv/code returns error if feature disabled#1980

fisx merged 5 commits intodevelopwireapp/wire-server:developfrom

SQSERVICES-547-do-not-allow-add-when-feature-disabledwireapp/wire-server:SQSERVICES-547-do-not-allow-add-when-feature-disabledCopy head branch name to clipboard