Add PromiseKit dependency

- Added PromiseKit dependency

Carthage/Checkouts/PromiseKit/Extensions/AVFoundation/Sources/AVAudioSession+AnyPromise.h

@@ -0,0 +1,30 @@
+//
+//  AVFoundation+AnyPromise.h
+//
+//  Created by Matthew Loseke on 6/21/14.
+//
+
+#import <AVFoundation/AVFoundation.h>
+#import <PromiseKit/AnyPromise.h>
+
+/**
+ To import the `AVAudioSession` category:
+
+    use_frameworks!
+    pod "PromiseKit/AVFoundation"
+
+ And then in your sources:
+
+    #import <PromiseKit/PromiseKit.h>
+*/
+@interface AVAudioSession (PromiseKit)
+
+/**
+ Wraps `-requestRecordPermission:`, thens the `BOOL granted` parameter
+ passed to the wrapped completion block. This promise cannot fail.
+
+ @see requestRecordPermission:
+*/
+- (AnyPromise *)requestRecordPermission;
+
+@end