Maintenance release: TYPO3 7.4 support and some minor improvements

Please see upgrade guide in documentation.

Changelog: 1.1.0...1.2.0

Author: fnagel

composer.json

@@ -18,7 +18,7 @@
   ],
   "homepage": "https://github.com/fnagel/generic-gallery",
   "license": "GPL-2.0+",
-  "version": "1.1.0",
+  "version": "1.2.0",
   "support": {
     "issues": "https://github.com/fnagel/generic-gallery/issues"
   },

ext_emconf.php

@@ -21,7 +21,7 @@
 	'uploadfolder' => '1',
 	'createDirs' => '',
 	'clearCacheOnLoad' => 1,
-	'version' => '1.1.1-dev',
+	'version' => '1.2.0',
 	'constraints' => array(
 		'depends' => array(
 			'typo3' => '6.2.0-7.4.99',