已完成数据模型设及其操作实现
Make members of HttpWebRequestService static
Merge branch 'master' of https://github.com/chinesepianoguy/ShuttleLocator-CSharp

Conflicts:
	README.md
	ShuttleLocator/Services/HttpWebRequestService.cs
	ShuttleLocator/ViewModel/ViewModelOfNotices.cs
	ShuttleLocator/ViewModel/ViewModelOfShuttles.cs
	ShuttleLocator/ViewModel/ViewModelOfStations.cs