fixed doc typo
Added missing doc
Issue 232: ZooKeeper guarantees that "A watch object, or function/context pair, will only
be triggered once for a given notification." Curator was breaking this guarantee by internally creating a
new Watcher object each time one was needed. This is now fixed and ZooKeeper's guarantee is restored. Big
thanks to user barkbay for his persistence and help on this.
Merge pull request #244 from Randgalt/master

Fixed ZooKeeper watcher identity guarantees