CR-2625 Fix for OPENAM-3305: Developer's guide should detail how to change password using the IdentityResource

git-svn-id: https://svn.forgerock.org/openam/trunk/openam@7380 0f4defcf-c51a-4c67-9f44-6fb5eba73c5d
CR-2626 Fix for OPENAM-3327: Install guide should state that deploying to root context is not supported

git-svn-id: https://svn.forgerock.org/openam/trunk/openam@7381 0f4defcf-c51a-4c67-9f44-6fb5eba73c5d