Add new comparison operator 'gt', 'lt', 'gte' and 'lte'
* src/tsung_controller/ts_mon.erl: remove the commas in tsung.dump
  file header, replace them with semi-colon
Merge pull request #58 from rodo/bugfix

* src/tsung_controller/ts_mon.erl: remove the commas in tsung.dump
Merge pull request #57 from rodo/comparison

Add new comparison operator 'gt', 'lt', 'gte' and 'lte'