Log Message:
py-kazoo: updated to 2.6.1

2.6.1:

Bug Fixes
* **client:**  add missing paren
* **core:**
  *  support deprecated KazooRetry argument
  *  reduce timeout for the first Connect() request
* **handlers:**  make AsyncResult call all registered callbacks instantly if the \ 
handler has stopped running
* **recipe:**
  *  No more memory leak when ChildrenWatch was stopped
  *  No more memory leak once TreeCache was closed

2.6.0:

Features
* **core:**
  *  add SASL DIGEST-MD5 support
  *  Added SSL support
* **tests:**
  *  update Zookeeper 3.5.2-alpha to 3.5.4-beta
  *  update Zookeeper version from 3.4.10 to 3.4.13

Bug Fixes
* **core:**
  *  ensure timeout argument is positive
  *  get_children with include_data=True uses GetChildren2 types
  *  allow authentification in RO and RW modes
  *  Use a copy of auth data when reconnecting
  *  change KazooRetry to uniformly jitter over the whole backoff interval
* **recipe:**  Delete lock node in queue recipe if entry already consumed

Doc
*   make badges link to travis and pypi
*   specify description type for pypi to render correctly
*   remove broken downloads badge
* **core:**  fix broken zookeeper programmers guide link