[master] With the new MM, more composite buffers are in play.  Given such, it may be, when calling replace on a composite buffer, the target buffer, while ultimately within the CompositeBuffer, it may be within a child CompositeBuffer.  Add logic to account for this.

All tests now pass with the new MM.
[master] Fix copyright.
[master] Remove CLQ-based PooledMemoryManager.
[master] PooledMemoryManagerAlt -> PooledMemoryManager.
[master] Minor tweak to yesterday's fix.
[master] YAMT.
[master] Fix javadoc links.