Support highlight candidate(file name and line number)

This idea is based on #33 by fgeller
Merge pull request #34 from syohex/support-color-candidates

Support highlight candidate(file name and line number)
Update document
Bump up version and update Changes
Enable highlighting candidate 'from-here' source
Merge pull request #35 from syohex/fix-missing-highlighting-setting

Enable highlighting candidate 'from-here' source
Bump up version and update Changes