Disabled some replication/aci testcases depending on server configuration (split mode, upgrade)

Added new aci testcases to check readability of cn=changelog and ds-sync-hist attribute

CR-1618 Fix test group for replication-safe-read and replication-safe-data (part2)

CR-1618 Fix test group for replication-safe-read and replication-safe-data

refactor replication functional tests to be one test per function

Make setup/cleanup a tescase in replication tests.

Clean of use of data and temp data in functional tests

Last batch of changes for this week. This adds support for the IETF based Password Policy for LDAP as SubEntry. Also resolves the following issues : - 4544 : initializeBackend() should not set JE env config params directly. - 4478 : ECL in draft compat mode / search lastchangenumber can be very long - 4538 : Virtual attributes not retrieved when entry cache configured - 4547 : Search Filter Matching differ for cn=Directory Manager and plain user. - 4514 : Logs shows unexpected message with replication monitoring data missing (Partial fix) - 4534 : Replication using security does not work after server restart - 4516 : SEVERE_ERROR: servers (...) have the same ServerId In addition, they also improve reliability and performance in various areas including CollectiveAttributes, Virtual Attributes and Subentries management, Schema loading, Replication...