manual: "Always remember last folder" setting update

- move to File View settings menu
- add to config file options

Change-Id: Id676fd5e0cdc9f0471b975addb1fecd62f3cd61d

manual/appendix/config_file_options.tex

@@ -52,6 +52,7 @@
     sort case       & on, off           & N/A\\
     show files      & all, supported, music, playlists & N/A\\
     show filename exts & off, on, unknown, view\_all & N/A\\
+    keep directory  & on, off           & N/A\\
     follow playlist & on, off           & N/A\\
     playlist viewer icons
                     & on, off           & N/A\\

manual/configure_rockbox/file_view.tex

@@ -90,6 +90,10 @@ displays files.
   \setting{Current Directory Only} or \setting{Full Path}, then the title of
   each menu will be displayed on the first line in the \setting{Database Browser}.
 
+\item [Always remember last folder.]
+  Saves the last position in the \setting{File Browser} on shutdown.
+  This directory (and, if applicable, last file) will be restored next boot.
+
 \opt{hotkey}{
   \nopt{touchscreen}{\item[File Browser Hotkey.]
     Sets the hotkey function for the \setting{File Browser},

manual/rockbox_interface/browsing_and_playing.tex

@@ -194,9 +194,6 @@ each option pertains both to files and directories):
     \item [Recording Directory.]
      Save recordings in the selected directory.
   }
-  \item [Always remember last folder.]
-   Saves the last position in the file browser on shutdown.
-   This directory (and if applicable last file) will be restored next boot.
   \item [Start Directory.]
    Set as default start directory for the File Browser.
    \note{If you have \setting{Auto-Change Directory} and