RxScala: Subscription add with block expression

[headinthebox]

final def add(s: Subscription): Unit = {
    asJavaSubscriber.add(s.asJavaSubscription)
  }

add

final def add(s: =>Unit): Unit = ...

So you can write s.add{ blah; blah }

[jbripley]

I'll take a stab at this issue.

[headinthebox]

cool