Update onos.sh to generate ramcloud.conf, etc.

- Generate conf/ramcloud.conf
- Specify ramcloud config file when starting ONOS core
- Changed ZooKeeper log dir to onos-log/`hostname`
  Note: Currently log filename cannot be modified using env. variable, etc.
- Changed default ramcloud.conf address to 127.0.0.1
- Changed hazelcast default in onos_node.conf to tcp + 127.0.0.1
- Put our path first in LD_LIBRARY_PATH

Change-Id: I53e8dec0e659f12ffae609354675ff73188757e3
diff --git a/conf/ramcloud.conf b/conf/ramcloud.conf
index b69fcd2..9acd174 100644
--- a/conf/ramcloud.conf
+++ b/conf/ramcloud.conf
@@ -1,4 +1,5 @@
-ramcloud.coordinatorIp=fast+udp:host=192.168.56.11
+ramcloud.coordinatorIp=fast+udp:host=127.0.0.1
 ramcloud.coordinatorPort=port=12246
-ramcloud.serverIp=fast+udp:host=192.168.56.11
+# Following lines is not used by ONOS core
+ramcloud.serverIp=fast+udp:host=127.0.0.1
 ramcloud.serverPort=port=12242