Adding PodSpec for CocoaPods repository
Update README.md
Update UIAlertView-Blocks.podspec
Adds a reference to tag 1.0 in the Podspec source parameters
Podspec version now matches tagged version, added MIT license file to make the Podspec pass the 'pod spec lint' validation
Update LICENSE
Update README.md
Create button item array on demand, making sure it's non-nil.

When the alert view is created without using the init method in the category the button items array would be nil, causing the actions associated with new RIButtonItems to not fire. Also sets the delegate if needed.
Revert Xcode whitespace cleanup per Jiva.
Fix indentation and method signature spacing to match style.