TiddlyFox does not support unicode file names

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If file path contains characters with codes more than 255 TiddlyFox shows message box with error and does not save file.
OS: Windows 8.1
Browser: Firefox 43.0.4

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How to reproduce:

• Create folder with Russian name "тест" or Greek name "τεστ".
• Copy Tiddly Wiki file to this folder.
• Open this file in Firefox.
• Edit and save some tiddler.
• When you save changed tiddler you see error message. File is not saved.

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How to fix:
File tiddlyfox.js, line 23
var pathname = document.location.toString().split("#")[0];
Change this line to:
var pathname = decodeURI(document.location.toString().split("#")[0]);

URI from document location is encoded and you should decode it before using as file name.