r3544: Lazy instantiation for most component interfaces;
       Backtracking interfaces still bind at component init time.

         r3458         r3544         r3545        r3545+opt
    ==========    ==========    ==========        =========

1.      84.9 M        35.5 M        12.2 M           6.26 M

2.    5.44 sec      1.89 sec      0.73 sec         0.45 sec

3.    1.99 sec      1.18 sec      1.19 sec         0.98 sec

4.  2998 calls     899 calls     347 calls        239 calls

5.  2336 calls    1057 calls    1581 calls       1122 calls


Key:
   1: create 1000 notes (memory)
   2. create 1000 notes (seconds)
   3. format 1000 notes (seconds)
   4: create 1 note (number of function calls)
   5. format 1 note (number of function calls)

(Tested under OS 10.6.4 on 2-core Intel iMac with 1.85 GHz / 1.5 GB.)
