Squashed commit of the following:

commit 880e8b42998dc390e71df5000ca98cbc47878ef2
Author: Mattt Thompson <m@mattt.me>
Date:   Thu Dec 5 15:00:40 2013 -0800

    Refactoring & reformatting

commit 1cebad05bf2a427bf1751bcc568e06217529fd96
Merge: fa079d9 1963bf9
Author: Mattt Thompson <m@mattt.me>
Date:   Thu Dec 5 14:45:55 2013 -0800

    Merge branch 'async_reachability' of github.com:yury/AFNetworking into yury-async_reachability

commit 1963bf9d07023c15e00343edc8c61f6411d92119
Author: Yury Korolev <yurykorolev@me.com>
Date:   Fri Nov 29 11:50:28 2013 -0800

    Inline block

commit 523cb36925b2f1bc25df56776f3c77139389851c
Author: Yury Korolev <yurykorolev@me.com>
Date:   Thu Nov 28 13:51:41 2013 -0800

    Closes #1581. Remove sync SCNetworkReachabilityGetFlags call.