Logfile: move progress attr to parse(); fix for compressed files
Logfile: move progress attr to parse(); fix for compressed files

* Like fupdate/cupdate, makes more sense in parse than __init__()
* Compressed files can't seek from end, so no way to get file size.
  Check for this, and don't use progress.

Clyde-fare/cclib,Schamnad/cclib,ghutchis/cclib,cclib/cclib,berquist/cclib,Schamnad/cclib,ben-albrecht/cclib,cclib/cclib,langner/cclib,berquist/cclib,ben-albrecht/cclib,langner/cclib,ATenderholt/cclib,gaursagar/cclib,berquist/cclib,andersx/cclib,ghutchis/cclib,ATenderholt/cclib,andersx/cclib,jchodera/cclib,Clyde-fare/cclib,langner/cclib,jchodera/cclib,cclib/cclib,gaursagar/cclib