git ignore IDEA and maven files
Replace Quartz scheduled job with a local ScheduledExecutorService

- Remove Quartz dependency from pom
- Remove Quartz-specific code from lookupd job class
- Use ScheduledExecutorService instead of a quartz Scheduler. Also, stop all exectors properly upon shutdown.
- Convert all output to SLF4J
- Fix whitespace in pom.xml (whitespace only)
- Add version to maven-compiler-plugin to shut maven up.

Refs #1
Add NSQProducer class, posting to NSQ via HTTP

- Add apache http client as dependency
- Add some transient test dependencies, not required at runtime
- Add logback config (slf4j implementation) for unit tests only.
- Add NSQProducer example, and tweak PrintReader example to inter-operate

Refs #1