3 interactive tasks: solve deadlocks?
4 interactive tasks: logging of messages
5 terminology: problem -> task ?
9 test cases for judge-shuff
13 fpc: add switch -gl (runtime errors write line#), but avoid that when inside the sandbox
16 - update group permissions
20 - contest: task status cache
23 - scores dependent on time (like PL olympiad)
27 recursive try-ln for dir input
28 clean and well-defined expansion (beware of per-test re-expansion)
29 configurable names of in/out files (independent of $PROBLEM)
30 paranoidly check file mode/owner before running the sandbox
36 Test: ping-pong timing attacks
37 Test: big static memory
38 Examine the use of taskstats for measuring memory
39 Switch license to GPL2/GPL3