Merge pull request #104 from wlue/master

XCode 5.1 warnings.
Turn ONLY_ACTIVE_ARCH back off.
Merge pull request #107 from square/puls/only-active-arch

Turn ONLY_ACTIVE_ARCH back off.
fix crash on arm64 devices

Function Pointers Must Use the Correct Prototype:
https://developer.apple.com/library/ios/documentation/General/Conceptual
/CocoaTouch64BitGuide/ConvertingYourAppto64-Bit/ConvertingYourAppto64-Bi
t.html#//apple_ref/doc/uid/TP40013501-CH3-SW22
Merge pull request #108 from fogisland/master

fixed crash on arm64 devices (issue : https://github.com/square/PonyDebugger/issues/84)
Use Apple's provided base64 implementation.
Merge pull request #110 from square/kve/kve/RI-3784

[Master] Use Apple's provided base64 implementation.
Bump SocketRocket.
Bump SocketRocket, to quelch Xcode project upgrade nag.
Merge pull request #111 from square/af/fix-xcode-51-warnings

Bump SocketRocket, to squelch Xcode project upgrade nag.
Bump SocketRocket.
Allow pip to install pybonjour

pybonjour is not hosted on PyPI, and pip version 1.5 requires it to now be marked as --allow-external and --allow-unverified to be installed.
Merge pull request #114 from streeter/patch-1

Allow pip to install pybonjour
Moved AFNetworking to 2.x
Adding NSURLSessionTaskDidFinishWithError Swizzling
Overhauling test app
Adding download session sample
Removing AFNetworking from sample app
Adding preview for download results
Minor edits in sample app