Make logc standard in these monitor* scripts

modules/rhizo_base/files/bin/monitor_rapi.sh

@@ -1,12 +1,9 @@
 #!/bin/bash
+RHIZO_SCRIPT="/home/rhizomatica/bin"
+. $RHIZO_SCRIPT/vars.sh
 
 LOGFILE="/var/log/monitor_rapi.log"
 
-function logc() {
-        txt=$1
-        echo "[`date '+%d-%m-%Y %H:%M:%S'`] $txt" >> $LOGFILE
-}
-
 curl --connect-timeout 180 --max-time 180  -X GET http://localhost:8085/configuration/site 2>/dev/null
 if [ $? -gt 0 ]; then
         logc "RAPI is not responding kill the process"