Sets up I18n
Adds locales for main pages.

It includes locales for homepage, footer, menu, dashboard,
fixture and sidebar.
For English and Spanish
Adds locales for groups, prizes and predictions
Adds locales for flash messages
Shows disclaimer based on locale
Shows rules based on locale
Adds user rank calc for missing views
Merge pull request #67 from threefunkymonkeys/i18n_attempt

I18n attempt