Xcode refactor for ARC
Cleanup post-refactor with Xcode
Xcode refactor for modern Objective-C syntax
Change framework imports to module syntax
Update visual style to replicate Xcode 5
Use GitHub’s .gitignore

From https://github.com/github/gitignore/blob/master/Objective-C.gitignore
Remove unused variable
Increase target to Lion and convert unsafe_unretained properties to weak
Inspector view body is now a weak reference