Initial version of cross building with scala 2.10 and 2.11.
Changed a test in OrSpec for attempt that expect NotImplementedError as fatal to use VirtualMachineError instead, because NotImplementedError is no longer fatal in Scala 2.11.
Make sbt to use 2.10.4.
Upgraded .travis.yml to use Scala 2.10.4.
Added the missing crossBuildLibraryDependencies to gentestsSharedSettings.
Added junit and mockito as dependencies to gentests projects.
Added pegdown to gentests dependency.