Update for Xcode 6.1.1
Update README.md
using optional chaining instead of forced unwrapping
Merge branch 'master' of github.com:mozilla/firefox-ios
Update TabsViewController.swift
Update README.md
Update README.md
Update README.md
Add links to README.
No bug: update to Xcode 6.1.1. (issue #30)
Update README.md