Set fabric's conn_attempts to 3, removed timeout
Set fabric's conn_attempts to 3, removed timeout

Timeout signifies the time until which the fabric run/sudo operation
should return. This isn't what we need.

There is not direct option for connection timeout in fabric so set
env.connection_attempt to 3.

Signed-off-by: Shashank Sahni <48273395e0436587f8f1beebda52d256c947abb2@gmail.com>

siel-iiith/MultiStack,siel-iiith/MultiStack