closes #2 Export Directory Path

[jeetee]

• Restoring the export directory using the OS-differentiator.
• Generalized retrieving of the path from the dialog by using a regex.

[JosephEoff]

Incorrectly strips leading / from directory name under Linux. Please check the regex - I'm not good at them, so I'm not real clear on how it supposed to work. When selecting the directory on a Linux system, I receive file:///home/joseph/Songs/jeeteeTest This needs to be modified to /home/joseph/Songs/jeeteeTest

[jeetee]

This should fix it. I misread the original issue report as linux paths only having a double slash instead of a triple one.

Replace now happens in two steps:

1. Remove file:// as it is common for all platforms
2. Only remove next slash if it is directly followed by a single character, semicolon and another slash. This should filter out the Drive letters on windows.

The regex transforms /C:/Users/jt/Music into C:/Users/jt/Music but leaves /home/whatever as is.

[JosephEoff]

OK. I'll check it this evening.

[JosephEoff]

Looks good on Windows. I'll check on Linux later when I'm home.

[JosephEoff]

Works under Linux.