Added API_VERSION geting from window object
Removed slashes from API_VERSION
Merge branch 'develop' of https://github.com/prjts/open-budget into develop
Refactor i18n to be a separate module, next to api.js
Merge branch 'develop' of https://github.com/prjts/open-budget into develop
Removed transition from  legend buttons
meh.
Merge remote-tracking branch 'origin/develop' into develop