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.

Work in progress.
git ignore IDEA and maven files
Convert all output to SLF4J
Fix whitespace in pom.xml (whitespace only)
Add version to maven-compiler-plugin to shut maven up.
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.

Refs #1
Merge branch 'noquartz'

Conflicts:
	.gitignore