Hammer does not handle folder with spaces in the name correctly

[mbaltus]

When the scope is a file location that contains a space in the name, Hammer defaults back to the desktop folder if you want to open a new instance, instead of using the scope.

Steps:

• After starting Hammer, click 'Choose an instance' and browse to a folder with a space in the name - for example 'My Documents'
• Open an instance; this works correctly
• Choose 'Open new instance' to see that Hammer reverts back to the desktop folder instead of using the scope.