Fix for OPENAM-3209, review CR-4544 - add support for updating Tomcat v6 global.xml during custom install

git-svn-id: https://svn.forgerock.org/openam/trunk@10522 0f4defcf-c51a-4c67-9f44-6fb5eba73c5d
AME-4021 CR-4550 Add upgrade step to migrate old policy conditions

git-svn-id: https://svn.forgerock.org/openam/trunk@10525 0f4defcf-c51a-4c67-9f44-6fb5eba73c5d