Interesting 'finds' in a CVS updated Moodle 1.9.12+.  Un-documented?

In [YOURMOODLE]/admin/[name_of_file_below].php - which should mean only admin level users can execute AND must be logged on to execute.

innodb.php

Appears to be a script "Convert all MySQL tables from MYISAM to InnoDB".

If moving to 2.1 this step is either before (preparing to move) OR after moving to 2.1. With this, one could accomplish that BEFORE the move.  No 5 or 6 step guru-ish knowledge of phpMyAdmin required (just 'guts' to try it!  BACKUP BEFORE ATTEMPTING!).
Truth in advertising: have NOT tried it yet!

health.php

appears to show problems with Moodle - and makes recommended solutions.
Here's one:

The user account your are connecting to the database server with is set up without a password.

and another (which I've seen recently on Moodle.org):

Your PHP configuration includes an enabled setting, session.auto_start, that must be disabled in order for Moodle to work correctly. Notable symptoms arising from this misconfiguration include fatal errors and/or blank pages when trying to log in.

Dis-calmer (nope, spelled it right!) ... like programmers who make no claims and who take no responsibility for user actions/abilities, the author of this article also makes similar 'dis-calmer' - take no responsibility for using them, don't 'support' them.  If you didn't make a backup before trying, why NOT? ;)