Added util classses which implement jersey auth endpoints and security
filters for users of jerseys. Supporting classes are abstracted wherever
possible.
Moved anything that depends on Jersey/JAXRS/SecurityContext into the
ws.rs package. Only basic HTTP session/header functions are left.
Null case accounted for
Refactor of singleton, capture type logic in a required init function.
updated logging with more accurate message
use already available utils
Merge pull request #37 from thongsav-usgs/master

Added util classses which implement jersey auth endpoints and security