Added activate: i18n. This enables localization.
Now is checking if section is Nil before iteration
Changed url for home buttom: /index.html -> /
Added / before urls so the paths become absolute.
Initial setup for localization.

Created locale and localizable folders with localizations for
English and Portuguese.
Added two terms to be localizable just for testing.
Changed name of _about partial to _about_partial because it seemed
to be conflicting with other file named about.html.erb.
Moved all html.erb files to localizable folder. Partials stayes in
the root folder.
Added word "in" between "masters program" and "ML"
Added en|pt buttons in top navbar.
Localized H1 header message in main page.
Moved content in index to new content/ folder.

Also setup skeleton to be used for full translation of the home
page.
Localized the top-navbar to portuguese.
Added "/" before js paths so can it found in pt/
Now when pt|en is pressed page is redirected right

That is, that page is redirected not to the home page but to the
page where you are now, except for the language that is different.
Localized about text to portuguese.
Fixed bug in top_navbar links in pt pages.

The links were redirecting to the wrong urls.
Localized the footer. Langs available: en, pt.
Deleted the includ of the script widgets.js

I was not using it.
Localized almost everything to portuguese.

Just the academic, bio, and contact pages needs futher localization.
But these pages have at least the section titles and side menu
localized.