Modernize for MW 1.31 and PHP 7

* Move to extension.json style
* Replace class constructors with __construct
* Replace addHeadItem with addModules
* Update parser hook callback
* Default to SSL database connection

BMysqlConnector.php

@@ -23,7 +23,7 @@ class BMysqlConnector {
   protected $context;
   protected $error;
 
-  function BMysqlConnector( $context ) {
+  function __construct( $context ) {
     $this->setContext($context);
   }
 
@@ -36,8 +36,8 @@ public function getContext() {
   }
 
   public function connect() {
-    $db = new mysqli($this->context->host, 
-      $this->context->dbuser, $this->context->password);
+    $db = new mysqli();
+    $db->real_connect($this->context->host, $this->context->dbuser, $this->context->password, null, null, null, MYSQLI_CLIENT_SSL);
 
     /*
      * Set character encoding

BugzillaQuery.php

@@ -288,7 +288,7 @@ class BugzillaQuery extends BSQLQuery {
   # - warn, 
   # - getErrorMessage
   # 
-  function BugzillaQuery( $connector ) {
+  function __construct( $connector ) {
     $this->setConnector($connector);
     $this->setContext($connector->getContext());
   }

BugzillaQueryRenderer.php

@@ -26,7 +26,7 @@ class BugzillaQueryRenderer {
   var $connector;
   var $output;
 
-  public function BugzillaQueryRenderer($query) {
+  public function __construct($query) {
     $this->query=$query;
     $this->context=$query->context;
     $this->connector=$query->connector;