devel/SOPE5: update to 5.5.0

Version upgrade from upstream. Including build fixes with fragile (gcc)
flag, building without OpenLDAP option and new upstream master sites.

Changelog:
5.5.0
* fix(imap): improve debugging of EOQualifier
* fix(core): improve SSL error log
* Revert "fix(imap): parse message/global structure like message/rfc822"

5.4.0
* fix(pgsql): add open connection count in debugging output

5.3.0
* fix(mime): restore SENT-DATE support in EOQualifier
* fix(imap): parse message/global structure like message/rfc822
* feat(imap): allow search by keyword
* fix(core): don't eat successive LF when decoding quoted printable
* core: accept range with no duration in date intersection
* feat(imap): add support for UID MOVE operation
* fix(mime): encode text parts individually
* fix(imap): force envelope subject to return a string

5.2.0
* fix(imap): parse messages quota
* fix(imap): don't unselect mailbox if none is selected
* fix(imap): flatten and sort inner threads
* fix(appserver): add timestamp to all web resources

(tm)