Fix MergeBuffer/BufferedObserver(backpressured), re-add monifu-core + SpinLock
Initiate package monifu-rx / monifu-rx-js + drop Scala 2.10 support
Fix SpinLock for JS
Add Observable.unsafeMerge, optimize Observable.observeOn
Change Observable.observeOn - add bufferPolicy as parameter
Version bump
Update README