fixing some bug at MEStaffTableViewController
Merge github.com:haidang30/miniEvalApp

Conflicts:
	MiniEvalApp.xcodeproj/project.pbxproj
	MiniEvalApp.xcodeproj/project.xcworkspace/xcuserdata/viet.xcuserdatad/UserInterfaceState.xcuserstate
	MiniEvalApp/Controller/MEStaffDetailsTableViewController.h
	MiniEvalApp/Controller/MEStaffDetailsTableViewController.m
	MiniEvalApp/Controller/MEStaffTableViewController.m
	MiniEvalApp/Controller/METabBarViewController.h
	MiniEvalApp/Controller/METabBarViewController.m
	MiniEvalApp/MEConstants.h
	MiniEvalApp/MiniEvalApp-Prefix.pch
	MiniEvalApp/Model/MEStaff.h
	MiniEvalApp/Model/MEStaff.m
	MiniEvalApp/Resources/METabbarView.xib
	MiniEvalApp/View/MEStaffCustomViewCell.h
	MiniEvalApp/View/MEStaffCustomViewCell.m
	MiniEvalApp/View/METabBarView.h
	MiniEvalApp/View/METabBarView.m
	MiniEvalApp/en.lproj/MainStoryboard_iPhone.storyboard
	README.md