internationalize option selection
Merge pull request #1 from dayflower/i18n-sel

Internationalize option selection
oops
just use File::Copy#copy for copying files
add an option output_layer to specify output encoding
Merge pull request #2 from kawamuray/master

Suppressing warning 'Wide character in print at foobar/local/lib/perl5/Ksgk.pm line 372.'
Path::Tiny way
Stabilize configuration output.

using Data::Dumper's Sortkeys (and Terse)
Merge pull request #4 from dayflower/better_dump

Stabilize configuration output.