Storm 0.9.3 support

This release adds support for Storm 0.9.3 in addition to a number of bug fixes.
New and updated examples available.

• Adds: Support for Storm 0.9.3 heartbeats (#82)
• Adds: StormHandler class for logging to Storm
• Adds: --wait timeout to sparse kill and spare submit
• Adds: "kafka-jvm" example -- mixed language topology (JVM/clojure + Python) with JVM-based Kafka Spout
• Adds: "wordcount-on-redis" example
• Updates: wordcount example
• Fixes: #64: `sparse tail fails when logs are missing
• Fixes: "flush" method to LogStream
• Fixes: #100: SSH tunnels are not always closed
• Fixes: -o option string issues
• Documentation updates