Translation improvement for user access & roles / syncing fr_CA to fr_FR

- User access menu is now easier to read in french (I had 2 words for access roles).
![Capture d e cran 2013-03-13 a 14 23 16](https://f.cloud.github.com/assets/314697/254117/fe8fd8d4-8bea-11e2-9d87-b1aaacdb6631.png)

- fr_CA is updated through fr_FR cloning