Upgrade to i18n-abide 0.0.8. Rename config `locale_directory`

* `locale_directory` becomes `translation_directory`
* Documents json compile-json step
* Moves us off .mo files and on to .json files
compile-json.sh has no file extension. Thanks jrgm
Adding compile-json step. Ensuring i18n json dir. Fixes #124
Merge branch 'issue-67-l10n' into train-2013.01.17
Bumping to Release 9 for l10n code