Merge branch 'typo3v8compatibility' into 'master'

...emirror/plugins/codemirror/CodeMirror/test/search_test.js

...irror/plugins/codemirror/CodeMirror/test/sql-hint-test.js

...mirror/plugins/codemirror/CodeMirror/test/sublime_test.js

...mce-codemirror/plugins/codemirror/CodeMirror/test/test.js

...codemirror/plugins/codemirror/CodeMirror/test/vim_test.js

...demirror/plugins/codemirror/CodeMirror/theme/3024-day.css

...mirror/plugins/codemirror/CodeMirror/theme/3024-night.css

...r/plugins/codemirror/CodeMirror/theme/ambiance-mobile.css

...demirror/plugins/codemirror/CodeMirror/theme/ambiance.css

...irror/plugins/codemirror/CodeMirror/theme/base16-dark.css

...rror/plugins/codemirror/CodeMirror/theme/base16-light.css

...mirror/plugins/codemirror/CodeMirror/theme/blackboard.css

...codemirror/plugins/codemirror/CodeMirror/theme/cobalt.css

...mirror/plugins/codemirror/CodeMirror/theme/colorforth.css

...odemirror/plugins/codemirror/CodeMirror/theme/eclipse.css

...odemirror/plugins/codemirror/CodeMirror/theme/elegant.css

...irror/plugins/codemirror/CodeMirror/theme/erlang-dark.css

...irror/plugins/codemirror/CodeMirror/theme/lesser-dark.css

...ce-codemirror/plugins/codemirror/CodeMirror/theme/mbo.css

...demirror/plugins/codemirror/CodeMirror/theme/mdn-like.css