AME-4916, CR-4785. Replacing Restlet's ClientResource with HttpURLConnection.

git-svn-id: https://svn.forgerock.org/openam/trunk@10987 0f4defcf-c51a-4c67-9f44-6fb5eba73c5d
OPENAM-4578, CR-4799 - null is being appended to realm when clicking on forgotPassword link

git-svn-id: https://svn.forgerock.org/openam/trunk@10988 0f4defcf-c51a-4c67-9f44-6fb5eba73c5d
OPENAM-4473(CR-4795): This commit will supress unnecessary call to ServiceConfigImpl from SessionService and also ServiceConfigImpl will not log message in error level if it couldn't find referenced service subconfig

git-svn-id: https://svn.forgerock.org/openam/trunk@10990 0f4defcf-c51a-4c67-9f44-6fb5eba73c5d