Added configuration fields for mp_join; now it's possible to put
different variables before computing ful_hmac (3rd ack of mp_join).

New test creations are made
Adding fuzzing tests creation tool
Refactoring for i386 machines. Need to test u64 values entered by the
tester.
Tests modifications to run correctly
Adding run_test.sh in tests folder
Merge branch 'master' into mypdrill