WPP-61:  Add a PreInterceptor that can replace tokens in the header values with user attributes
NOJIRA:  Fix opensaml dependencies that seem to have gone missing
NOJIRA:  Update the NOTICE file
WPP-62:  Add a PreInterceptor that can force the portlet to proxy only the BaseURL
NOJIRA:  Add missing license header
[maven-release-plugin] prepare release WebProxyPortlet-1.1.8
[maven-release-plugin] prepare for next development iteration