Add zip as requirement needed by phpexcel export

composer.json

@@ -28,7 +28,6 @@
             "main/inc/lib",
             "plugin",
             "main/install",
-            "main/inc/lib/getid3",
             "main/survey",
             "main/inc/lib/hook"
         ]
@@ -39,6 +38,7 @@
         "ext-gd": "*",
         "ext-curl": "*",
         "ext-zlib": "*",
+        "ext-zip": "*",
         "ext-xml": "*",
         "ext-json": "*",
         "ext-mbstring": "*",

main/install/install.lib.php

@@ -721,6 +721,10 @@ function display_requirements(
                 <td class="requirements-item"><a href="http://php.net/manual/en/book.mysql.php" target="_blank">pdo_mysql</a> '.get_lang('support').'</td>
                 <td class="requirements-value">'.checkExtension('pdo_mysql', get_lang('Yes'), get_lang('ExtensionMySQLNotAvailable')).'</td>
             </tr>
+            <tr>
+                <td class="requirements-item"><a href="http://php.net/manual/en/book.zip.php" target="_blank">Zip</a> '.get_lang('support').'</td>
+                <td class="requirements-value">'.checkExtension('zip', get_lang('Yes'), get_lang('ExtensionNotAvailable')).'</td>
+            </tr>
             <tr>
                 <td class="requirements-item"><a href="http://php.net/manual/en/book.zlib.php" target="_blank">Zlib</a> '.get_lang('support').'</td>
                 <td class="requirements-value">'.checkExtension('zlib', get_lang('Yes'), get_lang('ExtensionZlibNotAvailable')).'</td>