Shaarli's translation

* translation system and unit tests
 * Translations everywhere

Dont use translation merge

It is not available with PHP builtin gettext, so it would have lead to inconsistency.

plugins/qrcode/qrcode.meta

@@ -1 +1 @@
-description="For each link, add a QRCode icon ."
+description="For each link, add a QRCode icon."

plugins/qrcode/qrcode.php

@@ -59,3 +59,12 @@ function hook_qrcode_render_includes($data)
 
     return $data;
 }
+
+/**
+ * This function is never called, but contains translation calls for GNU gettext extraction.
+ */
+function qrcode_dummy_translation()
+{
+    // meta
+    t('For each link, add a QRCode icon.');
+}