Update missions-screen-enhancer.js

- Updated "option.hideunlocked" French Language
Merge pull request #7 from GeneralSheppard/patch-2

Update missions-screen-enhancer.js
First take at #8
Update missions-screen-enhancer.js
Update missions-screen-enhancer.js
Update missions-screen-enhancer.js
Update missions-screen-enhancer.js
Update missions-screen-enhancer.js
Update missions-screen-enhancer.js
Update missions-screen-enhancer.js
Update missions-screen-enhancer.js
Update missions-screen-enhancer.js
Update missions-screen-enhancer.js
Update missions-screen-enhancer.js
revert
Finishing #8
Release 1.2
Merge pull request #9 from dapil/dev

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