remove outdated apache http client

fix a bug in response header processing in imagemanip; change preemptive auth strategy

start trying to limit use of connections in testing

massive test cleanup and JUnit4 helpers for class annotation support

fix duplicate client shutdown in test.cma.Util; still exhausting conns on TestRESTAPI

refactoring TestRESTAPI to not hold so many pooled connex indefinitely

start adding some missing StringEntity content types

finish content-type cleanup, testRESTAPI passing

fix a null pointer in HttpUtils, ConfigC and ConfigQ should not run general HTTPStatusCodes
minimize test object ingest, fix listDatastreams validation
remove extra calls to ByteArrayOutputStream.toByteArray
cache Templates where possible