Merge pull request #7011 from owncloud/jshint

.jshintrc

apps/files/js/admin.js

apps/files/js/file-upload.js

apps/files/js/fileactions.js

apps/files/js/filelist.js

apps/files/js/files.js

apps/files/js/upgrade.js

apps/files/js/upload.js

apps/files/tests/js/fileactionsSpec.js

apps/files/tests/js/filelistSpec.js

apps/files/tests/js/filesSpec.js