XML interface and rating fixes and changes; updates #244

- XML interface update to v1.4
-- added listing_last_modified and log_last_modified fields
-- changed and fixed handling of ratings for multiple found logs of one user
-- resend log records after editing (only) rating or withdrawing rating via mytop5
-- logtype fix: convert type > 8 to 3 in XML versions < 1.3

- fixed rating handling when deleting one of multiple found logs
-- added dbmaintain update procedure for this fix
- show only one rating star when a user logged multiple founds
- added trigger update function to database versioning