Wrong composer version constraints #55
Description
On TYPO3 11.x I can install version 12.x of l10nmgr, but this crashes in the Backend with undeclared ViewHelper arguments because of missing includeJavaScriptModules (which does not exist on TYPO3 11, only on 12).
A composer setup of TYPO3 11 should only allow istalling 11.x of l10nmgr.