Added German locale specs

Author: norberttech

spec/Coduo/PHPHumanizer/DateTimeSpec.php

@@ -99,4 +99,22 @@ function it_humanizes_precise_difference_between_dates_for_pl_locale()
             $this->preciseDifference(new \DateTime($example[0]), new \DateTime($example[1]), 'pl')->shouldReturn($example[2]);
         }
     }
+
+    function it_humanizes_precise_difference_between_dates_for_de_locale()
+    {
+        $examples = array(
+            array("2014-04-26 13:00:00", "2014-04-26 12:58:15", '1 Minute, 45 Sekunden vor'),
+            array("2014-04-26 13:00:00", "2014-04-26 11:20:00", '1 Stunde, 40 Minuten vor'),
+            array("2014-04-26 13:00:00", "2014-04-27 13:15:00", '1 Tag, 15 Minuten ab jetzt'),
+            array("2014-04-26 13:00:00", "2014-05-03 15:00:00", '7 Tage, 2 Stunden ab jetzt'),
+            array("2014-04-26 13:00:00", "2015-04-28 17:00:00", '1 Jahr, 2 Tage, 4 Stunden ab jetzt'),
+            array("2014-04-26 13:00:00", "2014-04-28 23:00:00", '2 Tage, 10 Stunden ab jetzt'),
+            array("2014-04-26 13:00:00", "2014-04-25 11:20:00", '1 Tag, 1 Stunde, 40 Minuten vor'),
+            array("2014-04-26 13:00:00", "2016-04-27 13:00:00", '2 Jahre, 1 Tag ab jetzt'),
+        );
+
+        foreach ($examples as $example) {
+            $this->preciseDifference(new \DateTime($example[0]), new \DateTime($example[1]), 'de')->shouldReturn($example[2]);
+        }
+    }
 }