Merge pull request #112 from exercism/fix-binary-test

Add canonical cases to test

exercises/binary/src/test/java/BinaryTest.java

                 {"5", 0},
                 {"9", 0},
                 {"134678", 0},
-                {"abc10z", 0},
+                {"abc10", 0},
+                {"10z", 0},
+                {"10a10", 0},
                 {"011", 3}
         });
     }