git-svn-id: svn://svn.rockbox.org/rockbox/trunk@596 a1c6a512-1295-4272-9138-f99709370657
implementation files from the test/malloc/ directory, leaving only test files there. Added headers, corrected a few minor documenational errors. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@571 a1c6a512-1295-4272-9138-f99709370657