新增 add 圖示
Merge branch 'master' of https://github.com/StanleyDing/Reminder into StanleyDing-master

Conflicts:
	MainFormComponent.cs
重要性依驚嘆號表示
Remove minimize icon. Adjust the looks.
Merge branch 'EventClass' of https://github.com/Coffeinism/Reminder.git
Almost finished.