Event socket bug fix and more docs (#6823)

* Add documentation to methods. Use is_resource for added type detection

* Allow connect to specify timeout in microseconds with default 30,000

* Update calling mechanism for event sockets

* Update project for new singleton event sockets

* remove unused variable

* catch errors on closing the socket

app/system/resources/dashboard/system_cpu_status.php

@@ -38,7 +38,7 @@
 			$cpu_cores = trim($result);
 		}
 		if (stristr(PHP_OS, 'Linux')) {
-			$result = trim(shell_exec("grep -P '^processor' /proc/cpuinfo"));
+			$result = @trim(shell_exec("grep -P '^processor' /proc/cpuinfo"));
 			$cpu_cores = count(explode("\n", $result));
 		}
 		if ($cpu_cores > 1) { $percent_cpu = $percent_cpu / $cpu_cores; }