Introduce dependency injection:
 * seperate dropwizard-jobs-core and dropwizard-jobs-guice modules
 * upgraded dropwizard version to 0.7.0-rc2
 * Since defaultRegistry has been removed, now using SharedMetricRegistries to shared dropwizard environment metrics registry during bundle initialization.
 * updated quartz to 2.2.1
 * Introduce Guice DI
 * Introduce Spring DI
 * Applied mongojack format from @yunspace