Fix an issue with the directory picker.
Merge pull request #1 from Nepenthes/develop

Added support for "version" file in fs2mod archives.
Experimenting with fs2:// and improving support for version fields.
Fixes...
Fixed checking paths... Thanks to Hellzed for finding this!
Allow the use of fso:// as well.
Hopefully fixed the bug for niffiwan now.
Further PyQt4/PySide compatibility fixes.
Python 2/3 compatibility enhanced.
Fixed issue with progress bars.
Fix for special characters and whitespace in fso:// links.
Added reset selection.
Merge pull request #1 from ngld/develop

Rebase