Update min. support version to 28.0a1
Use ES6 Rest parameters.
Remove needless access to 'arguments'.
Update library
CR+LF => LF
Use buildscript, readonly
Update treestyletab.dtd

Add some french translations
Merge pull request #595 from AxlMun/patch-1

Update French translation (by AxlMun)
Add credit
More french translations

It was some remaining non translated texts.
I hope this is complete now.
Merge pull request #596 from AxlMun/patch-1

More french translations
Merge pull request #590 from saneyuki/args

Remove needless access to 'arguments'
Fix breakage of hooked tabModule.Scriptish_openInTab
Fix breakage of *Now APIs
Call original "stop" method with all given arguments correctly
Use ES6 Rest parameters.
Remove needless access to 'arguments'.
Fix breakage of hooked tabModule.Scriptish_openInTab
Fix breakage of *Now APIs
Call original "stop" method with all given arguments correctly