SLIDER-254 allow apps to use CredentialProvider for sensitive properties, update Accumulo app package to use it for the initial root password
SLIDER-254 bump Accumulo version to 1.6.1-SNAPSHOT and configure app package to use CredentialProvider
SLIDER-254, SLIDER-146 added ability to enable ssl for accumulo using a credential provider
SLIDER-254 fix some issues with accumulo process startup
SLIDER-254 added ASF snapshots repository to pull in snapshot versions of accumulo and hadoop
SLIDER-254 update feature branch changes for java 6 compatibility
SLIDER-254 update test appConfigs as in SLIDER-360
Merge branch 'feature/SLIDER-254_use_credential_provider' into develop

Conflicts:
	app-packages/accumulo/appConfig.json