Made two submissions to "trunk" to address this:
1. First one made the changes to add the "showHiddenFiles" style to the TerraFileBrowserSkin, TerraFileBrowserSheetSkin, as well as TerraVFSBrowserSkin, and TerraVFSBrowserSheetSkin, and then to "do the math" to disable the HIDDEN_FILE_FILTER if the flag is set to true. Also added a checkbox to the VFSBrowserTest program so this feature could be tested.
2. The second change added a rendering change so that hidden files or directories are rendered with dim icons and disabled text color, again in both browser skin classes. This change also puts the little checkbox into the FileBrowserWithCharsetTest so the feature can be tested with the regular file browser as well.