connmgr: Log when a packet-in is dropped due to queue overflow.

Reported-by: Anton Matsiuk <anton.matsiuk@gmail.com>
Signed-off-by: Ben Pfaff <blp@nicira.com>
bridge: Fix reversed string parsing in bridge_configure_flow_miss_model().

This commit fixes a command matching error introduced by commit
7155fa52f (ofproto-dpif: Add 'force-miss-model' configuration).

Signed-off-by: Alex Wang <alexw@nicira.com>
Signed-off-by: Ben Pfaff <blp@nicira.com>