* use Dpkg::Version::vercmp(v1, v2) for comparing versions all over (grep for
  compare)
* investigate using App::Cmd
* ensure (with a test) that dependency lists are indented with one space
* ensure (with a test) that doing a refresh over the debian/ directory produced
  by --make doesn't change anything
* --refresh on MIME-Charset 1.007 can't detect the dist name and cries.
  May be similar to #525847
* when ITP for the package is found, try to deduce short/long description from
  the bug report
* add new command, --trace-depends. To be used like

   dh-make-perl --trace-depends --cpan Foo-Bar

  it should output a tree-like structure of missing dependencies without
  preparing any packaging yet
* when a dependency is not packaged, search wnpp's bugs and report if there is
  ITP about the package
* versioned dependencies should add the epochs too (found in
  libpoex-role-sessioninstantiation-perl, where META.yml and Build.PL
  request 'POE 1.005' which should translate to "libpoe-perl (>= 2:1.0050)")
* package_already_exists(): maybe search for the module and not the package name;
  otherwise existing packages are missed that have a different name (cf. #530675)
--refresh: add --only <file> option making --refresh update only specified file
* modularize dh-make-perl and put it on CPAN.
