Changed image from php:apache to ubuntu

build/config.php

@@ -20,7 +20,7 @@
 	// This is the number of times that the WOL server will try to ping the target computer to check if it has woken up. Default = 15.
 	$MAX_PINGS = REPLACE_RWSOLS_MAX_PINGS;
 	// This is the number of seconds to wait between pings commands when waking up or sleeping. Waking from shutdown or sleep will impact this.
-	$SLEEP_TIME = REPLACE_RWSOL_SLEEP_TIME;
+	$SLEEP_TIME = REPLACE_RWSOLS_SLEEP_TIME;
 
 	// This is the Name of the computers to appear in the drop down
 	$COMPUTER_NAME = array(REPLACE_RWSOLS_COMPUTER_NAME);