Adding sample logrotation config and cron

This will allow pool operators to rotate the logfiles automatically via cron.

.gitignore

@@ -1,4 +1,5 @@
 /public/include/config/global.inc.php
 /public/templates/compile/*.php
 /cronjobs/logs/*.txt
+/cronjobs/logs/*.txt.*.gz
 /public/templates/cache/*.php

cronjobs/etc/logrotate.conf

@@ -0,0 +1,6 @@
+"./logs/*.txt" {
+  copytruncate
+  rotate 7
+  compress
+  daily
+}

cronjobs/logrotate.sh

@@ -0,0 +1,11 @@
+#!/bin/bash
+
+# Find scripts path
+if [[ -L $0 ]]; then
+  CRONHOME=$( dirname $( readlink $0 ) )
+else
+  CRONHOME=$( dirname $0 )
+fi
+
+cd $CRONHOME
+logrotate etc/logrotate.conf