French translation
Added back missing deprecated fullscreen functions, and fixed a warning from using a deprecated method internally.

fixes #1451
Merge commit 'a582c833e34c227ff29b707bad9cd4857f32c877' of github.com:MrVaykadji/video.js into french
Added a line to the changelog for #1467
Merge branch 'hotfix/fullscreen-deprecations' into stable
Added a line to the changelog for #1488