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/conferences_active/conferences_active_inc.php

@@ -43,8 +43,8 @@
 	$text = $language->get();
 
 //show content
-	$fp = event_socket_create();
-	if (!$fp) {
+	$fp = event_socket::create();
+	if (!$fp->is_connected()) {
 		$msg = "<div align='center'>".$text['message-connection']."<br /></div>";
 		echo "<div align='center'>\n";
 		echo "<table width='40%'>\n";
@@ -58,7 +58,7 @@
 		echo "</div>\n";
 	}
 	else {
-		$xml_string = trim(event_socket_request($fp, 'api conference xml_list'));
+		$xml_string = trim(event_socket::api('conference xml_list'));
 		try {
 			$xml = new SimpleXMLElement($xml_string);
 		}