title: ObjectMapper, Carthage, and Xcode 6.3 error
body: <p>Have a project using Carthage for dependencies.  Recently updated to Xcode 6.3 and Swift 1.2.  When that happened I also had to update my Cartfile which is now:</p>
  
  <p>github "Alamofire/Alamofire" >= 1.2</p>
  
  <p>github "SwiftyJSON/SwiftyJSON" >= 2.2</p>
  
  <p>github "Hearst-DD/ObjectMapper" ~> 0.9</p>
  
  <p>ObjectMapper does not seem to be able to compile however.  When running 'carthage update' I get:</p>
  
  <pre><code>The following build commands failed:
  CompileSwift normal x86_64 .../Carthage/Checkouts/ObjectMapper/ObjectMapper/Core/Mapper.swift
  CompileSwiftSources normal x86_64 com.apple.xcode.tools.swift.compiler
  (2 failures)
  </code></pre>
  
  <p>Looks like the folks working on the ObjectMapper have included changes to support newest Swift/Xcode and don't see others with issues on that end.  Would appreciate any insight into this error message :)</p>