Fix OpenProject's use of faux italic, Upgrade to Lato v2.0

Pictures speaks louder…

Before:
![seeded_project_-_overview_-_openproject](https://cloud.githubusercontent.com/assets/755/2802416/09a0809a-cc8e-11e3-90af-719d240f49ed.png)

After:
![seeded_project_-_overview_-_openproject](https://cloud.githubusercontent.com/assets/755/2802401/e9f29eae-cc8d-11e3-9519-9f6fa8b0014c.png)

The newer version of Lato continues to be available under the [SIL OPEN FONT LICENSE Version 1.1](http://scripts.sil.org/cms/scripts/page.php?site_id=nrsi&id=OFL)