Some Guice fixes

- remove the ReflectionHelpers, not actually needed for the scan logic
- fix bad Name in the GuicePropertyFilteringMessageBodyWriter.
code review feedback
lifecycle wip

Conflicts:
	SingularityService/src/main/java/com/hubspot/singularity/SingularityServiceModule.java
	SingularityService/src/main/java/com/hubspot/singularity/data/history/SingularityHistoryPersister.java
	SingularityService/src/main/java/com/hubspot/singularity/guice/DropwizardGuiceContainer.java
	SingularityService/src/main/java/com/hubspot/singularity/guice/GuiceBundle.java
	SingularityService/src/main/java/com/hubspot/singularity/guice/ReflectionHelpers.java
	SingularityService/src/main/java/com/hubspot/singularity/mesos/SingularityMesosScheduler.java
	SingularityService/src/main/java/com/hubspot/singularity/mesos/SingularityMesosTaskBuilder.java
	SingularityService/src/main/java/com/hubspot/singularity/mesos/SingularitySlaveAndRackManager.java
	SingularityService/src/main/java/com/hubspot/singularity/mesos/SingularityStartup.java