Update Chinese translation

Correct translation and add missing colon

app/Locale/zh_CN/translations.php

@@ -951,14 +951,14 @@ return array(
     'Column:' => '栏目：',
     'Position:' => '位置：',
     'Creator:' => '创建者：',
-    'Time estimated:' => '时间已过去：',
+    'Time estimated:' => '预计时间：',
     '%s hours' => '%s 小时',
     'Time spent:' => '时间消耗：',
     'Created:' => '已创建：',
     'Modified:' => '已修改：',
     'Completed:' => '已完成：',
     'Started:' => '已开始：',
-    'Moved:' => '已移走',
+    'Moved:' => '已移走：',
     'Task #%d' => '任务#%d',
     'Time format' => '时间格式',
     'Start date: ' => '开始时间：',