xcode 6.1 support
update submodules & changelog
Merge pull request #58 from orta/master

@ashfurrow => xcode 6.1 support
update to support AlamoFire Xcode 6.1 GM
Merge pull request #59 from orta/xcode-6.1

@ashfurrow => update to support AlamoFire Xcode 6.1 GM
Linking dependencies manually