Updating pre-release links to updated publication

Not all links our outdated, but some are doing redirects to the non-beta documentation, so I'm updating those accordingly.

Author: thinkclay

a-better-way-to-learn-swift.mdown

@@ -3,24 +3,24 @@
 [swiftcast tweet link]: https://twitter.com/intent/tweet?text=@SwiftCastTV%20@GoThinkster%20
 
 [apple_dev]: https://developer.apple.com/register/index.action
-[playgrounds]: https://developer.apple.com/library/prerelease/ios/recipes/xcode_help-source_editor/chapters/ExploringandEvaluatingSwiftCodeinaPlayground.html
+[playgrounds]: https://developer.apple.com/library/ios/recipes/xcode_help-source_editor/chapters/ExploringandEvaluatingSwiftCodeinaPlayground.html
 
-[chapter_tour]: https://developer.apple.com/library/prerelease/mac/documentation/Swift/Conceptual/Swift_Programming_Language/GuidedTour.html#//apple_ref/doc/uid/TP40014097-CH2-XID_1
-[chapter_basics]: https://developer.apple.com/library/prerelease/mac/documentation/Swift/Conceptual/Swift_Programming_Language/TheBasics.html
-[optionals_basics]: https://developer.apple.com/library/prerelease/mac/documentation/Swift/Conceptual/Swift_Programming_Language/TheBasics.html#//apple_ref/doc/uid/TP40014097-CH5-XID_485
+[chapter_tour]: https://developer.apple.com/library/mac/documentation/Swift/Conceptual/Swift_Programming_Language/GuidedTour.html#//apple_ref/doc/uid/TP40014097-CH2-XID_1
+[chapter_basics]: https://developer.apple.com/library/mac/documentation/Swift/Conceptual/Swift_Programming_Language/TheBasics.html
+[optionals_basics]: https://developer.apple.com/library/mac/documentation/Swift/Conceptual/Swift_Programming_Language/TheBasics.html#//apple_ref/doc/uid/TP40014097-CH5-XID_485
 [optionals_complete_guide]: http://matteomanferdini.com/the-complete-guide-to-understanding-swift-optionals/
-[chapter_extensions]: https://developer.apple.com/library/prerelease/mac/documentation/Swift/Conceptual/Swift_Programming_Language/Extensions.html#//apple_ref/doc/uid/TP40014097-CH24-XID_229
+[chapter_extensions]: https://developer.apple.com/library/mac/documentation/Swift/Conceptual/Swift_Programming_Language/Extensions.html#//apple_ref/doc/uid/TP40014097-CH24-XID_229
 [solutions]: http://www.swiftcast.tv/articles/swift-programming-language-solutions-experiments
 [swift_js]: http://realm.io/news/swift-for-javascript-developers/
 [operators]: http://nshipster.com/swift-operators/
 [reserved_words]: http://blog.swiftcast.tv/articles/reserved-words-escaping
 [values_vs_reference]: https://developer.apple.com/swift/blog/?id=10
 [values_vs_reference_intuition]: http://www.objc.io/issue-16/swift-classes-vs-structs.html
-[compound_vs_named]: https://developer.apple.com/library/prerelease/mac/documentation/Swift/Conceptual/Swift_Programming_Language/Types.html
+[compound_vs_named]: https://developer.apple.com/library/mac/documentation/Swift/Conceptual/Swift_Programming_Language/Types.html
 [optionals_case]: https://developer.apple.com/swift/blog/?id=12
 [swift_defines_away]: https://medium.com/@rrridges/swift-optionals-a10dcfd8aab5
-[chapter_functions]: https://developer.apple.com/library/prerelease/mac/documentation/Swift/Conceptual/Swift_Programming_Language/Functions.html
-[chapter_closures]: https://developer.apple.com/library/prerelease/mac/documentation/Swift/Conceptual/Swift_Programming_Language/Closures.html
+[chapter_functions]: https://developer.apple.com/library/mac/documentation/Swift/Conceptual/Swift_Programming_Language/Functions.html
+[chapter_closures]: https://developer.apple.com/library/mac/documentation/Swift/Conceptual/Swift_Programming_Language/Closures.html
 [basic_functions_closures]: http://airspeedvelocity.net/2014/06/11/a-basic-tutorial-on-functions-and-closures-in-swift/
 [function_cheatsheet]: http://adoptioncurve.net/archives/2014/08/the-many-forms-of-swift-functions-a-cheatsheet/
 [closure_choke]: http://www.informit.com/articles/article.aspx?p=2234250