- synchronization for remote and local sites are done by the same code
- remote sites can update metadata now (not before) - bug 279
- fixes bug 82: has_high column
- improve feature 280: user sort by filename
- fix path to template mimetypes icons
- bug 284: session cookie lifetime, deletion on logout and corrected issue
when db upgrades were missing
git-svn-id: http://piwigo.org/svn/trunk@1029 68402e56-0260-453c-a942-63ccdbb3a9ee
