+Installer:
+- mo-install: reduce what gets copied to mo-eval home
+- update group permissions
+- quotas
+
+New submitter:
+- Checking of contest time (and per-contestant exceptions)
+- Keeping history and pruning status files
+- Remember hashes
+- contest: override failed check
+- contest: local history
+- contest: task status cache
+
+Various ideas:
+scores dependent on time (like PL olympiad)
+box: konfigurovatelny pristup k timerum a /proc/self/stat (pripadne /proc/self/fd)