Update deprecated configuration keys

[ksclarke]

Looks like some configuration keys have had their names changed and the old name deprecated. Update the names so that our build is future proof.

8738bf> 23:45:13.084 [qtp2079179914-22] WARN  o.a.v.deprecation - configuration key 'resource.loader' has been deprecated in favor of 'resource.loaders'
8738bf> 23:45:13.085 [qtp2079179914-22] WARN  o.a.v.deprecation - configuration key 'classpath.resource.loader.class' has been deprecated in favor of 'resource.loader.classpath.class'
8738bf> 23:45:13.085 [qtp2079179914-22] WARN  o.a.v.deprecation - configuration key 'class.resource.loader.cache' has been deprecated in favor of 'resource.loader.class.cache'
8738bf> 23:45:13.085 [qtp2079179914-22] WARN  o.a.v.deprecation - configuration key 'space.gobbling' has been deprecated in favor of 'parser.space_gobbling'