Log of changes to RAMFS

Version 2.04
 *  Fix SWI out of range to produce error message rather than keeping quiet.
 *  Rearrange RamFS into sensible directory structure and fix the sources to
        not rely upon a geriatric aasm.

Version 2.05
 *  Enable fix_1 to stop user R13 corruption on mounting the RAMFS disc.

Version 2.10
  LRust 12-Feb-1992 
 * Perform Service_DiscDismounted during die entry to ensure all Filer windows
   close.  Fixes bugs G-RO-9201, G-RO-9835 and RP-0701a