Fix #2864: allow empty x-www-form-urlencoded bodies

Migrated to Travis Matrix for 2.X

 #3040)

Replace `extern` with `FOUNDATION_EXPORT` which works correctly when C++ imports the header.

AWS analytics for iOS app crash in AFNetworking

method

- Added test demonstrating fix

hasSpaceAvailable become "false" and no failure blocks are called

Switch to OS_OBJECT_USE_OBJC

AFHTTPSessionManager copying securityPolicy not getting copied

Apple changed the format WWDC video URLs.

Fix README link to WWDC session

…enamed some function parameters to avoid reserved keyword issues if the compiler is set for Obj-C++.

Removed Project Warnings (and updated version of #3019)

FIXED URLs that were redirecting in the README

Fix URL in README

Because the run-loop reachability callback executed its callback
directly, whereas the initial check (fired off from
`-[AFNetworkReachabilityManager startMonitoring]`) executed the callback
from a GCD queue, it was possible for the callbacks to be executed out
of order from when the status was obtained, leaving the listener in the
incorrect state.

By sending both routes through the same GCD-queuing function, both the
callbacks and NSNotifications will be processed in the order in which
they are sent. It also removes some repetition in the code.

It appears that a check was put in place to work around a race condition
when reachability was associated with a domain name. However, the cause
of the race condition is addressed in the previous commit, so the
special-casing is no longer needed.

Fix for #2810

Fix for #3110

…download task

Fix for #3104 and #3043

Fixed swift interop issue with throws and Request/Response serialization

Suppressed false positive memory leak warning in Reachability Manager

…allbacks

Fixed race condition in reachability callback delivery

Updated travis to run on 7.1

Fixed swift interop issue that prevented returning a nil NSURL for a download task

Restored Xcode 6 compatibility

…ng under some project configurations

Fix for #3138

Fixed clang analyzer warning suppression that prevented building under some project configurations