reset folder to my documents folder

[GoogleCodeExporter]

*Please fill in all defect information below.*

Product Version: 0.30.0
GUI or CLI: GUI
Operating system: OS X

What steps will reproduce the problem?
When creating MXF or DCP, when press any [...] button to locate directory, it 
shows the Documents directory.


What is the expected output?
It should shows the last used by app directory.


What is actual output?
Shows Documents directory.


Please provide any additional information below.
That's all.

Original issue reported on code.google.com by [email protected] on 25 Dec 2014 at 5:17