Traditional Chinese translation updated by ChunChang Lo (#16545)

git-svn-id: http://svn.redmine.org/redmine/trunk@13077 e93f8b46-1217-0410-a6f0-8f06a7374b81
Traditional Chinese "field_assigned_to" translation changed by ChunChang Lo (#16545, #16556)

git-svn-id: http://svn.redmine.org/redmine/trunk@13078 e93f8b46-1217-0410-a6f0-8f06a7374b81