64bit time_t + Test for rfc2047 token decoding logic for base64 encodings

Index: tests/test-mime.c
--- tests/test-mime.c.orig
+++ tests/test-mime.c
@@ -377,7 +377,7 @@ test_date_parser (void)
 			tz_offset *= sign;
 			
 			if (time != dates[i].date)
-				throw (exception_new ("time_t's do not match: actual: %ld; expected: %ld", time, dates[i].date));
+				throw (exception_new ("time_t's do not match: actual: %lld; expected: %lld", time, dates[i].date));
 			
 			if (tz_offset != dates[i].tzone)
 				throw (exception_new ("timezones do not match"));
@@ -408,6 +408,9 @@ static struct {
 	  "blah:\tI am broken",
 	  "blah:\tI am broken" },
 #endif
+	{ "=?UTF-8?B?SGVsbG8=?= =?UTF-8?B?IHdvcmxk?=",
+	  "Hello world",
+	  "Hello world" },
 	{ "=?iso-8859-1?Q?Copy_of_Rapport_fra_Norges_R=E5fisklag=2Edoc?=",
 	  "Copy of Rapport fra Norges R\xc3\xa5" "fisklag.doc",
 	  "Copy of Rapport fra Norges =?iso-8859-1?q?R=E5fisklag=2Edoc?=" },