Introducing API checking to agent-server comms.
[BZ 1096902] - "Maximum" and "Minimum" values do not match the graph values - fixing a race condition in CustomDateRangeState
[BZ 1082806] - Context referrals are hardcoded to ignore in LDAP configuration - making sure the dbupgrade won't fail if the value is already present in the DB
[1110277] RHQ_EVENT table's detail field limit of 4000 character will break when a log message contains multibyte characters (UTF-8)
This is a problem in a few places, not just events.  We're not
properly protecting against the 4000 byte limit on oracle, just
the 4000 character limit declared on the varchar2 field.
- Add DatabaseType.getString() which can truncate as needed in
  a vendor-specific way.
- Use the new getString() to store safe versions of event detail,
  alert notification log message, and calltime dataset destination.
Bug 1098092 - It's not possible to query pre-defined dynagroup definitions
via CLI

Added boolean filter parameter to ResourceGroupDefinitionCriteria class - so
group definitions can be filtered for "userDefinedOnly" - which excludes
provided canned expressions.
Bug 1109272 - [as7] Incorrect description of ManagedServerDeployment
[BZ 956509] Changing configFile can't work so make it readonly.
Merge remote-tracking branch 'origin/master' into feature/bz1069606-rebase-eap-63