bozo: report bosserver -rxbind address

bozo: report bosserver -rxbind address

Create a file on bosserver startup called bosserver.rxbind in the
server local directory which contains an address local scripts may
use to contact the bosserver.

When bosserver is started with the -rxbind option, write the address
selected from the intersection of the interfaces, NetInfo, and
NetRestrict configuration to the bosserver.rxbind file, otherwise
write the loopback address 127.0.0.1.

Update the RedHat init script to use the new bosserver.rxbind file.

Reviewed-on: http://gerrit.openafs.org/5488
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Derrick Brashear <shadow@dementix.org>
(cherry picked from commit 9133aa6ed3a7fe2ae55b2d3242366ae277c7f726)

Change-Id: I44f6f28d750aa0e463093655a64df8099b8d2cd4
Reviewed-on: http://gerrit.openafs.org/5539
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Derrick Brashear <shadow@dementix.org>