Branch b_release_1_4_6

Branch b_release_1_4_6
Description: MDS or OST may oops/LBUG if a client is connecting multiple times
Details    : The client ptlrpc code may be trying to reconnect to a down
	     server before a previous connection attempt has timed out.
	     Increase the reconnect interval to be longer than the connection
	     timeout interval to avoid sending duplicate connections to
	     servers.

This first part of the fix simply increases the reconnect interval to be
longer than the connection request timeout, to avoid having multiple
connect requests in flight from the same client at the same time.
b=9635
r=nathan