Bugfix release! (mostly)

## Changelog
- Upgraded folder select dialogs in nuke window, "Uninstall from directory" and junk backup to the new Win7+ style
- Fixed crash when displaying program files leftovers and prevented similar issues in future
- Fixed Dutch reg key confirm dialog crashing because of error in translated string
- Fixed crashes with invalid unicode code points in path and other strings
- Fixed icon extraction from files failing if files were in an UNC path
- Fixed "could not find CleanLogs.bat" when running from UNC path
- Fixed SeparataArgsFromCommands failing to separate some "cmd /args" type strings
- Fixed possible crash in JunkRemoveWindow with invalid IJunkResult without Confidence
- Fixed possible problem with date AspectToStringConverter, and inconsistent naming of GetAboutUri
- Refactoring; moved all universal ConfidenceRecords to a separate class

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