Adding I18n to canvabadges

[Kulgar]

Hello Whitmer,

Here is the pull request adding i18n mechanisms.

Some notes about it:

• I did not translate all the pages yet, we first focused on students' pages.
• Let me know if it is too messy so that I can clean the pull request
• I tested the application (using specs) and everything seemed fine, but I did not add any specs - I modified some specs because they were failing (because of old syntax)

I don't want this pull request to be to difficult for you to merge in your project, so, let me know if you need me to do anything to help you.

Regis.

[whitmer]

Hi Regis, thanks for doing this. I opted to include only the i18n code and a couple of the translations for now. The full .yml files are merged in, but I'd feel more comfortable applying the translations in a separate step. I'll try to get to this soon-ish, but if you have some time it'd help if you'd do each .erb file as a separate commit so I can more easily see what's going on.

Thanks for spear-heading this!