Changed time format in the omonet replay from milli to nano
Implemented lambda calculus DSL
- Simple DSL to express the lambda calculus, examples are:
  * 'x @: "y" @: (('x * 1) - "y")
  * "/WordCount" call ("/doc/doc1" :: Nil)
- DSL is available by import LambdaDSL._
LambdaPrinter is now a trait; added implicits from an expr to an interest and for thunks.
Integrated LambdaDSL into scenarios
Merge remote-tracking branch 'upstream/nfn' into nfn
Added publish service
Refactoring of NFNMaster
- renamed to NFNServer
- extracted ComputeServer
- structure and sematics should be clearer and some functinoality is less duplicated