Merge branch 'master' into milestone-DueDate-optional_240 add check again if gitea is older than 1.10.0 ... Crowdin [2020-01-04] + add Latvian (#253) update Translators add Latvian update Crowdin Co-authored-by: 6543 <6543@obermui.de> make DueDate optional on MilestoneCreaton Co-authored-by: 6543 <6543@obermui.de>