First cut of i18n for WhisperNote

Start implementing i18n within WhisperNote using the
grunt-template-runner plugin.
Upgrade grunt plugin versions and fix css minimisation within build
which wasn't occurring via uncss plugin - incorporate mincss plugin.
Update README.md to include extra steps required to get grunt plugins
working.
More work on i18n

Update EveryPass build to include grunt-template-runner for i18n.
Update grunt plugins for EveryPass, and remove redundant build steps.
i18n-ise strings for EveryPass and commit some initial locale files.