Merge pull request #760 from algolia/php7_compliance

Make the extension package PHP 7 compliant

Author: Jan Petr

dev/bin/algoliasearch.xml

@@ -28,7 +28,7 @@
         </email>
     </authors>
     <depends_php_min>5.3.0</depends_php_min>
-    <depends_php_max>6.0.0</depends_php_max>
+    <depends_php_max>7.2.0</depends_php_max>
     <depends>
         <package>
             <name>