Increase post limits for REST API.
Uniformize Debian and Ubuntu make_chroot scripts.
Update changelog, note that scripts in DB closes #123.
Add option to have compiler-error not add penalty time (Closes #127).
Fix apache config snippet: close www/jury directory tag.
Gather metadata about a testcase execution

Modify runguard to support a 'metadata' output file.
Write various key/value pairs(such as memory used, time taken, etc) to
the metadata file.
Modify testcase_run.sh to use the extra argument
Modify judgedaemon.main.php to upload the metadata file when submitting
a judging.
Properly cleanup varargs list and a few code layout fixups.
Move all child restriction code to setrestrictions() and
redirect stdio of child after calling that function to make
sure that any runguard messages do not get mixed with child
command output.
Open/close metadata file once, globally. This makes it more
efficient, but more importantly allows us to open it as an empty file.
Child program stdin/out (not stderr) should go transparently
through runguard to handle interactive problems. Also runguard
should never write to stdout.
Store combined stderr output of runguard and submission in error.out
and database, don't try to upload metadata file (not yet supported
anyways).
Remove options to write time and exitcode to single files, merging
these into metadata file and use that file to determine time-limit
verdict (closes #122).

Also update commented code to refer to new stdio files and
expected result for test source triggering time-limit bug.
Don't report an error if the process to be killed doesn't exist anymore.
Disable checktestdata build completely, if required.
Fix compile error in runguard.
Explicitely add lpthread LDFLAGS for submitclient.
Update autoconf macros from upstream.
Display dj-setup-database usage on every error.
Executables now have a type.

The type is one of compare, compile and run. One can view and edit the
type in the web interface but it is not used somewhere (e.g to filter).
Filter executables by type for selects.