added /web/memory debugging view
made memory debugging view differentiate old-style classes
Revert "broadcast shares in serial", strongly suspected of causing a memory leak

This reverts commit 6f1a456b21db79b06cd6d3edd1904dd3c597b981.

Conflicts:

	p2pool/main.py
	p2pool/p2p.py
	p2pool/util/p2protocol.py