Commit dev branch
Add touch id authentication
Add UserDefaults to enable Touch ID
Complete Touch ID Authentication
Merge branch 'dev'

Conflicts:

WePeiYang.xcodeproj/project.xcworkspace/xcuserdata/qinyubo.xcuserdatad/U
serInterfaceState.xcuserstate
	WePeiYang/WePeiYang-Info.plist
	WePeiYang/about/AboutViewController.swift