Trivial Description
org.apache.pivot.wtk.skin.terra.TerraFileBrowserSkin can perform 2 kinds of folder navigation as a result of keypresses.
The ENTER key changes into the selected directory, but only if keyboardFolderTraversalEnabled has been set to true (the default value)
DELETE & BACKSPACE both change to the parent of the current directory, regardless of the style.
Remove the style in order to reduce clutter in the class.