feat: add italian signature

lib/regex.js

@@ -82,6 +82,9 @@ class RegexList {
 
       // ES
       /^Enviado desde (?:\s*.+)$/, // es,
+
+      // IT
+      /^-*\s*(In\sdata\s.+\s.+\n?scritto:{0,1})\s{0,1}-*$/m, // it,
 
       // NL
       /^Verzonden vanaf (?:\s*.+)$/, // nl - e.g. Verzonden vanaf (Outlook voor Android<https://aka.ms/12345>|mijn iPad)

test/fixtures/email_italian.txt

@@ -0,0 +1,9 @@
+Fusce bibendum, quam hendrerit sagittis tempor, dui turpis tempus erat, pharetra sodales ante sem sit amet metus.
+Nulla malesuada, orci non vulputate lobortis, massa felis pharetra ex, convallis consectetur ex libero eget ante.
+Nam vel turpis posuere, rhoncus ligula in, venenatis orci. Duis interdum venenatis ex a rutrum.
+Duis ut libero eu lectus consequat consequat ut vel lorem. Vestibulum convallis lectus urna,
+et mollis ligula rutrum quis. Fusce sed odio id arcu varius aliquet nec nec nibh.
+
+In data 11 ottobre 2017 21:11:31 "John Doe - Stripe" <[email protected]> ha scritto:
+
+Buongiorno!

test/test.js

@@ -303,6 +303,16 @@ exports.test_email_finnish = function(test) {
   test.done();
 };
 
+exports.test_email_italian = function(test) {
+  let email = get_email("email_italian");
+
+  let fragments = email.getFragments();
+
+  test.equal(COMMON_FIRST_FRAGMENT, fragments[0].toString().trim());
+
+  test.done();
+};
+
 exports.test_email_with_correct_signature = function(test) {
   let email = get_email("correct_sig");