Added autoeditor annotation (AE) to material package menus.

Example:

    Red Example Score (2013) - materials

       1: instrumentation (AE)
       2: magic numbers
       3: pitch range inventory (AE)
       4: tempo inventory (AE)

          materials - copy (cp)
          materials - new (new)
          materials - remove (rm)
          materials - rename (ren)

    >

Composers can now tell at a glance whether a package has been configured for
autoediting.