Merge pull request #237 from FridaTveit/QueenAttachMakeFirstTestNotIgnored

Removed Ignore annotation from first test in queen-attack.

exercises/queen-attack/src/test/java/QueenAttackCalculatorTest.java

     @Rule
     public ExpectedException expectedException = ExpectedException.none();
 
-    @Ignore
     @Test
     public void testCoordinateWithNegativeRankNotAllowed() {
         expectedException.expect(IllegalArgumentException.class);