Rules must be public

Author: Dorvaryn

core/src/test/java/com/novoda/rxpresso/RxExpectTest.java

@@ -13,7 +13,7 @@
 public class RxExpectTest {
 
     @Rule
-    ExpectedException expectedException = ExpectedException.none();
+    public ExpectedException expectedException = ExpectedException.none();
 
     @Test
     public void expectMatchesAccordingToMatcher() throws Exception {

core/src/test/java/com/novoda/rxpresso/RxPressoTest.java

@@ -20,7 +20,8 @@
 
 public class RxPressoTest {
 
-    public @Rule ExpectedException expectedException = ExpectedException.none();
+    @Rule
+    public ExpectedException expectedException = ExpectedException.none();
 
     private TestRepository mockedRepo;
     private RxPresso rxPresso;