Add of icon font
Add of Open Sans font

This font will be the main font of the website.
Create of typography.css.scss

This file will contain all of the typography related css of the website. It already contains the font face declaration of Open sans who is the main font of the portofolio
Create icon.css.scss

This file will contain the icon related css.
Few changes to the layout

Changes :
- Change from "A propos de moi" to "Moi" to have all navigation links in one word
- Removal of useless <br> tags in the footer
Modification of app.css.scss
Rename of partial sass files

I renamed the partial sass files to ease their importation in the main sass file

* icons.scss.css -> _icons.scss
* typography.scss.css -> _typography.scss
* grid.scss.css -> _grid.scss
Add assets source ot _config.yml

I added the assets path to the coniguration file to include them in the assets pipeline and add them to the generated website
Correct the path of font files

I corrected to the path of the font files by using the assets_path function
Hide text from icon links in the footer while still keeping the icon
Replace the whole address in the footer links by the name of the service
Rename for consitency
Add reset
Setup grid for website

Simply write down the rule to layout the site. It use the flexbox module and need to add the different syntax.
Setup typography
Add compass to the list of used plugin
Fix markup

Simple fix of the markup : forgotten <li> in a <ul>