Added an initial interceptor for streaming outbound security for JAX-RS clients

git-svn-id: https://svn.apache.org/repos/asf/cxf/trunk@1562112 13f79535-47bb-0310-9956-ffa450edef68
File missing from last commit

git-svn-id: https://svn.apache.org/repos/asf/cxf/trunk@1562113 13f79535-47bb-0310-9956-ffa450edef68
Spelling correction + fix to get DOM-based signature code working with streaming code

git-svn-id: https://svn.apache.org/repos/asf/cxf/trunk@1562114 13f79535-47bb-0310-9956-ffa450edef68