+2.3 [2019-01-17]
+ * use the dark-coloured icon by default
+ Thanks to Arnaud Rebillout
+ * bump minimum required version to 57 to guarantee support
+ for all the used features
+
+2.2 [2018-09-26]
+ * remove leading/trailing white-space before evaluating input's
+ likeliness
+ * extend DSA numbers with an optional trailing -\d+, treat DLA as DSA,
+ add new 'security' color-tag
+ * add support for clipboard.readText(), available in firefox 63
+ * provide light and dark icon variants with standard colors
+ * place openlogo-nd.svg in a square document
+