Log missing Vault/economy plugin during parsing of money things.

Changes the "Vault was not found" message in Vault setup to INFO instead of WARNING, because this configuration isn't actually necessarily a warning sign. Parsing a money thing with no economy is, however. MoneyThingParser logs at ERROR level if Vault or an economy plugin isn't found, but a money thing is parsed.

src/test/java/com/garbagemule/MobArena/things/MoneyThingParserTest.java

@@ -4,7 +4,9 @@ import static org.hamcrest.CoreMatchers.is;
 import static org.hamcrest.CoreMatchers.not;
 import static org.hamcrest.CoreMatchers.nullValue;
 import static org.hamcrest.MatcherAssert.assertThat;
+import static org.mockito.Matchers.anyString;
 import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.verify;
 import static org.mockito.Mockito.when;
 
 import com.garbagemule.MobArena.MobArena;
@@ -14,16 +16,19 @@ import org.junit.Rule;
 import org.junit.Test;
 import org.junit.rules.ExpectedException;
 
+import java.util.logging.Logger;
+
 public class MoneyThingParserTest {
 
     private MoneyThingParser subject;
+    private MobArena plugin;
 
     @Rule
     public ExpectedException exception = ExpectedException.none();
 
     @Before
     public void setup() {
-        MobArena plugin = mock(MobArena.class);
+        plugin = mock(MobArena.class);
         Economy economy = mock(Economy.class);
         when(plugin.getEconomy()).thenReturn(economy);
 
@@ -51,6 +56,17 @@ public class MoneyThingParserTest {
         assertThat(result, not(nullValue()));
     }
 
+    @Test
+    public void nullEconomyNullMoney() {
+        Logger logger = mock(Logger.class);
+        when(plugin.getEconomy()).thenReturn(null);
+        when(plugin.getLogger()).thenReturn(logger);
+
+        subject.parse("$500");
+
+        verify(logger).severe(anyString());
+    }
+
     @Test
     public void numberFormatForNaughtyValues() {
         exception.expect(NumberFormatException.class);