[CLOSED] Fixes endless horizontal scrolling in the file tree

[core-ai-bot]

Issue by dangoor
Tuesday Sep 30, 2014 at 17:07 GMT
Originally opened as adobe/brackets#9378

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Fix for #9327

(Note that this includes #9355 and should land after that one).

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dangoor included the following code: https://github.com/adobe/brackets/pull/9378/commits