Fix #4281 - improve kafo output in interactive mode

New highline fixes color output. Also we allow only numbers to specify
answer so the list of allowed options is not that long.
Refs #4281 - Bright and dark background colors

Color scheme can be reused in installer script as well
add dynamic path for the default config file

By doing that, operating systems like *BSD or OSX which don't have config
files for third party programs in /etc can be better supported.
Merge pull request #73 from mmoll/sysconfdir

use a dynamic path to the default config file
Refs #4281 - use utf only if supported

We check LANG ENV variable to see whether we can use utf characters.
Merge pull request #74 from ares/fix_highline_questions_mess

Fix highline questions mess
Fix #3053 - Extracted parsers to extra gem
Version bump to 0.4.0
Merge pull request #75 from ares/master

Separating parser to an extra gem
Automatic commit of package [rubygem-kafo] minor release [0.4.0-1].
Automatic commit of package [rubygem-kafo] minor release [0.4.0-2].