build: Move PHP files to expected paths

Principal code is in includes/*.php with the file named the same as the class it
contains. The maintenance script is moved to maintenance/ for clarity.

Change-Id: Icb4cdffb1bd4716e14f883d667def96671b42992

extension.json

@@ -2208,12 +2208,12 @@
 		"CollabPad": "SpecialCollabPad"
 	},
 	"AutoloadClasses": {
-		"ApiVisualEditor": "ApiVisualEditor.php",
-		"ApiVisualEditorEdit": "ApiVisualEditorEdit.php",
-		"SpecialCollabPad": "SpecialCollabPad.php",
-		"VisualEditorHooks": "VisualEditor.hooks.php",
-		"VisualEditorDataModule": "VisualEditorDataModule.php",
-		"VisualEditorDesktopArticleTargetInitModule": "VisualEditorDesktopArticleTargetInitModule.php"
+		"ApiVisualEditor": "includes/ApiVisualEditor.php",
+		"ApiVisualEditorEdit": "includes/ApiVisualEditorEdit.php",
+		"SpecialCollabPad": "includes/SpecialCollabPad.php",
+		"VisualEditorHooks": "includes/VisualEditorHooks.php",
+		"VisualEditorDataModule": "includes/VisualEditorDataModule.php",
+		"VisualEditorDesktopArticleTargetInitModule": "includes/VisualEditorDesktopArticleTargetInitModule.php"
 	},
 	"ConfigRegistry": {
 		"visualeditor": "GlobalVarConfig::newInstance"

includes/VisualEditorHooks.php

@@ -1096,7 +1096,7 @@ class VisualEditorHooks {
 				'ext.visualEditor.desktopArticleTarget',
 				'ext.visualEditor.rebase'
 			],
-			'localBasePath' => __DIR__,
+			'localBasePath' => __DIR__ . '/..',
 			'remoteExtPath' => 'VisualEditor',
 		];
 

maintenance/autodisablePref.php

@@ -12,7 +12,7 @@
 
 $maintenancePath = getenv( 'MW_INSTALL_PATH' ) !== false
 	? getenv( 'MW_INSTALL_PATH' ) . '/maintenance/Maintenance.php'
-	: __DIR__ . '/../../../maintenance/Maintenance.php';
+	: __DIR__ . '/../../../../maintenance/Maintenance.php';
 
 require_once $maintenancePath;