Added a proxy object in testcases.xml.
  Override config.xml proxy definition (use "no_proxy" to disable for specific cases or specify another proxy to override).
  Set a specific proxy in some case(s) even if not defined in config.xml (in this case no_proxy is useless).
 Added returnmessage set on verifs even if break_on_errors is off.
   If an errormessage is set in testcase it will be used, otherwise last verif returnmessage will be used (short messages).
 Added a new hash to store global outputmessage (first key is the testcasefile number in read order, then testcases in numeric order with associated message).
 Added a $self->{'cookie'} variable.