logout button

there is an issue, can’t delete tab bar
assume to relanch the app by calling AppDelegate.cs
Merge branch 'master' of https://github.com/jakupllarif/Senior-Project

Conflicts:

SeniorProject/SeniorProject/bin/iPhoneSimulator/Debug/SeniorProject.app/
SeniorProject.exe

SeniorProject/SeniorProject/bin/iPhoneSimulator/Debug/SeniorProject.app/
SeniorProject.exe.mdb
	SeniorProject/SeniorProject/bin/iPhoneSimulator/Debug/SeniorProject.exe

SeniorProject/SeniorProject/bin/iPhoneSimulator/Debug/SeniorProject.exe.
mdb

SeniorProject/SeniorProject/obj/iPhoneSimulator/Debug/mtouch-cache/Build
/SeniorProject.exe

SeniorProject/SeniorProject/obj/iPhoneSimulator/Debug/mtouch-cache/Build
/SeniorProject.exe.mdb

SeniorProject/SeniorProject/obj/iPhoneSimulator/Debug/mtouch-cache/PreBu
ild/SeniorProject.exe

SeniorProject/SeniorProject/obj/iPhoneSimulator/Debug/mtouch-cache/PreBu
ild/SeniorProject.exe.mdb