1.2
  - Internally normalize all case of lang strings to lower_UPPER e.g en_US
  - Only run automatic check when 'spelling' is available and NOT_CRAN is set

1.1
  - Breaking: Package spell-checker now uses language from DESCRIPTION
  - Require hunspell 2.9 dependency (better parsing and dicationaries)
  - Change default lang to 'en_US'

1.0
  - Initial release
