Switch back to fork of spray.

Both v1.3.2 and v1.3.1_2.11 tags do not work in dbuild. The v1.3.2 simply
does not compile and v1.3.1_2.11 fails with:

[spray] [info] Set current project to root (in build file:/localhome/jenkinsdbuild/workspace/Community-2.11.x-manual/target-0.9.1/extraction/42c7d5e0770e5f0c15aa65f4d40f6c82f122f9db/projects/9966dc2563823ca6d7afd5dc3a57f02301fa4288/)
[spray] [info] Setting extraction Scala version to 2.11.2 in 31 scopes
[spray] [info] Resetting onLoad... in one scope
[spray] java.util.NoSuchElementException: None.get
[spray] 	at scala.None$.get(Option.scala:313)
[spray] 	at scala.None$.get(Option.scala:311)
[spray] 	at com.earldouglas.xsbtwebplugin.Container.com$earldouglas$xsbtwebplugin$Container$$stateToRunner(Container.scala:25)
[spray] 	at com.earldouglas.xsbtwebplugin.Container$$anonfun$containerSettings$5$$anonfun$apply$2.apply(Container.scala:58)
[spray] 	at com.earldouglas.xsbtwebplugin.Container$$anonfun$containerSettings$5$$anonfun$apply$2.apply(Container.scala:57)
[spray] 	at sbt.Project$.runUnloadHooks(Project.scala:282)
[spray] 	at sbt.Project$.setProject(Project.scala:286)