Update to 2.010807
    
    - New upstream release 2.010807
      - Too long version name was a misprint
      - Pay attention to PERL_EXTUTILS_AUTOINSTALL when interpreting empty answers
        to prompt (probably an overkill)
      - Report bytes in the answer for prompt
      - Split into separate subroutines inspecting versions available for download
        from the actual download
      - Change the logic of fallback Net::FTP -> LWP
      - __wrap_PARI_macro: new function (not exported)
      - parse_as_gp: new function (exported by default)
      - More verbose error message for "Cannot load a Pari macro"
    - Specify all dependencies