Removed old RMQ spout includes from topology
Added Build.scala file to handle github dependencies
Added logger dependency, fixed slf4j multiple bindings warning
Added grizzled-slf4j Logging mixin
Added basic logback configuration (to file and console)
Updated logback configuration to support logstash, added sample logstash config
Merge pull request #3 from anishathalye/master

Incorporated logging (logstash + slf4j + logback + scala logback mixins)