"ldac.py": Solved bug that new tables couldn't be appended.
"bootstrapping.py":
- Added the possibility that an external file can be used as
  input instead of picking lines randomly.
"create_condor.sh":
- Deleted requirements.
- Already creating log, error and output files in this step. This
  increases the speed of condor_submit because this program creates
  all these files and if this is done over a network, this is very
  slow.