CocoaPods 0.36.rc.1 - Pod Authors Guide to CocoaPods Frameworks

The extracted article from #59.

#### TODOs
* [ ] Explain `module_name`
* [ ] Review, stylistic improvements, fix typos, …
* [ ] Add the assets
* [ ] Update **pygments.rb** to a version, which brings a lexer for Swift
> Clang will take care making module exports that can be imported by Objective-C and Swift.