[jreed-host] Install host as b10-host.

It is not a complete compatible replacement for host,
so use a different name. (I brought this up at least a year ago.)

src/bin/host/Makefile.am

@@ -10,10 +10,10 @@ endif
 
 CLEANFILES = *.gcno *.gcda
 
-bin_PROGRAMS = host
-host_SOURCES = host.cc
-host_LDADD = $(top_builddir)/src/lib/dns/libdns++.la
-host_LDADD += $(top_builddir)/src/lib/exceptions/libexceptions.la
+bin_PROGRAMS = b10-host
+b10_host_SOURCES = host.cc
+b10_host_LDADD = $(top_builddir)/src/lib/dns/libdns++.la
+b10_host_LDADD += $(top_builddir)/src/lib/exceptions/libexceptions.la
 
 man_MANS = b10-host.1
 EXTRA_DIST = $(man_MANS) b10-host.xml