[asperl] added AS patch#3

[asperl] added AS patch#3
	Message-Id: <01BD2EF2.53433A40.dougl@ActiveState.com>
	To:      "'Gurusamy Sarathy'" <gsar@umich.edu>

	Here's an additional diff against //depot/asperl

	The field name mg_length was changed back to mg_len
	The function name mg_len was change to mg_length

	The need for sort_mutex removed thanks to the code derived
	from Tom Horsley's work.

	 -- Doug

p4raw-id: //depot/asperl@451