Bug fix for example project not behaving correctly when correct password is entered.
Fix for nil completion blocks causing crash.
Merge branch 'master' of https://github.com/stringer630/ShakingAlertView
Update README.md
Merge branch 'master' of github.com:stringer630/ShakingAlertView into kiwi-testing
Tests to check completion blocks are called only once.
Fix for completion blocks being called twice. fixes #4