Added changes for very old request check

Signed-off-by: Antanas Norkus <antanas.norkus@cern.ch>
Merge branch 'master' of https://github.com/cms-PdmV/stats
parse task1 for relevant information to computed expected number of events in output
Merge pull request #9 from vlimant/fill_expected_for_taskchain

Fill expected for taskchain