update font-awesome to 3.0.2

Signed-off-by: Sebastien Varrette <sebastien.varrette@uni.lu>
Use Font Awesome icons on key components

Signed-off-by: Sebastien Varrette <sebastien.varrette@uni.lu>
update README

Signed-off-by: Sebastien Varrette <sebastien.varrette@uni.lu>