0.6.6

• New Feature
  • add ReaderObservable module (@mlegenhausen)
  • add MonadObservable module (@mlegenhausen)
  • Observable
    • add of function (@mlegenhausen)
• Internal
  • upgrade to [email protected] (@mlegenhausen)
• Bug Fix
  • don't set target: es6 in tsconfig.build-es6.json (@gcanti)