remove the caldav and event app and make calendar the default app

Zotlabs/Lib/Apps.php

@@ -70,7 +70,7 @@ class Apps {
 			'Channel Home',
 			'View Profile',
 			'Photos',
-			'Events',
+			'Calendar',
 			'Directory',
 			'Search',
 			'Help',
@@ -342,7 +342,7 @@ class Apps {
 			'Channel Home' => t('Channel Home'),
 			'View Profile' => t('View Profile'),
 			'Photos' => t('Photos'),
-			'Events' => t('Events'),
+			'Calendar' => t('Calendar'),
 			'Directory' => t('Directory'),
 			'Help' => t('Help'),
 			'Mail' => t('Mail'),
@@ -363,7 +363,6 @@ class Apps {
 			'Privacy Groups' => t('Privacy Groups'),
 			'Notifications' => t('Notifications'),
 			'Order Apps' => t('Order Apps'),
-			'CalDAV' => t('CalDAV'),
 			'CardDAV' => t('CardDAV'),
 			'Channel Sources' => t('Channel Sources'),
 			'Guest Access' => t('Guest Access'),