tracker-extract: Avoid the use of setrlimit() it's causing problems
tracker-extract: Avoid the use of setrlimit() it's causing problems

Part of the solution is this commit, see:
https://bugzilla.gnome.org/show_bug.cgi?id=737663

The other part is to use cgroups

outofbits/tracker,outofbits/tracker,outofbits/tracker,outofbits/tracker,outofbits/tracker,outofbits/tracker,outofbits/tracker