Merge branch 'develop' of github.com:getgrav/grav into 1.7

 Conflicts:

	CHANGELOG.md

	system/src/Grav/Common/Page/Pages.php

CHANGELOG.md

@@ -199,6 +199,16 @@
     * Optimization: Initialize debugbar only after the configuration has been loaded
     * Optimization: Combine some early Grav processors into a single one
 
+# v1.6.19
+## mm/dd/2019
+
+1. [](#new)
+    * Catch PHP 7.4 deprecation messages and report them in debugbar instead of throwing fatal error
+1. [](#bugfix)
+    * Fixed fatal error when calling `{{ grav.undefined }}`
+    * Fixed multiple issues when there are no pages in the site
+    *  PHP 7.4 fix for [#2750](https://github.com/getgrav/grav/issues/2750)
+
 # v1.6.18
 ## 12/02/2019
 

system/src/Grav/Common/Debugger.php

@@ -782,7 +782,7 @@ class Debugger
      */
     public function deprecatedErrorHandler($errno, $errstr, $errfile, $errline)
     {
-        if ($errno !== E_USER_DEPRECATED) {
+        if ($errno !== E_USER_DEPRECATED && $errno !== E_DEPRECATED) {
             if ($this->errorHandler) {
                 return \call_user_func($this->errorHandler, $errno, $errstr, $errfile, $errline);
             }