Configtool Update Recording Tab

fixes #540
- Moved directory selection to recording tab
- Added recording tab heading
- Other refactoring (renaming variables to match style)

Edit: Now added:
- Replace directory edit button text with "Browse..."
- Translation support for the various changes
The reason why I changed this variable is that it is used in the AboutWidget. I asked Joseph about the "About" widget and he said that the heading should be "Freeseer" instead of "freeseer". Should I hardcode "Freeseer" into the AboutWidget or create a different variable next to NAME that containts "Freeseer"?