Extract build-dir from configure option.
Remove needless lines.
Add a test.
Test definitions refined.
Merge branch 'master' into chkbuild-ruby-info
output_proc implemented.
each_argfile extracted.
Use fixed value for type fields.
Use only small letters, digit and underscore for type and field names.
Merge branch 'master' into chkbuild-ruby-info

Conflicts:
	lib/chkbuild-ruby-info.rb
Merge pull request #20 from akr/chkbuild-ruby-info

Chkbuild ruby info
generate "build" hash.
Don't serch BUG and FATAL in title-info section.