Every 500th request prune a single old file from var/tmp and var/logs.
Might not be aggressive enough.  Fixes #2005.
Merge branch 'master' of github.com:gallery/gallery3
Automated update of .build_number to 349 for branch master
Last update: 5b6c138da1e53e93e4de8079885fcef29d12e673 (4 commits ago)
Follow-on to 7bdccade98e76df3a7830bc45bc42321a77c709a - point out that there's
duplicated code in gallery_event.
Automated update of .build_number to 350 for branch master
Last update: c97fe4bcdde3201ca416d61e38cd8afb4503dca2 (1 commits ago)
Follow-on to 7bdccade98e76df3a7830bc45bc42321a77c709a to exclude
directories for now.
Automated update of .build_number to 351 for branch master
Last update: 9346503c62a14a738dfa2efe24b8831275b73f44 (1 commits ago)