[4096] Move libeval up in lib/Makefile.am

    Now that libdhcpsrv depends on libeval, eval must be built first.

src/lib/Makefile.am

@@ -1,3 +1,3 @@
 # The following build order must be maintained.
 SUBDIRS = exceptions util log hooks cryptolink dns cc asiolink dhcp config stats \
-          asiodns testutils dhcp_ddns dhcpsrv cfgrpt eval
+          asiodns testutils dhcp_ddns eval dhcpsrv cfgrpt