#306 Change help provider to non-static / add calls to help functionality

src/test/java/fr/xephi/authme/command/CommandInitializerTest.java

@@ -275,7 +275,6 @@ public class CommandInitializerTest {
      * count of arguments.
      */
     @Test
-    @Ignore // TODO #306 ljacqu 20151214: Un-ignore this test and fix the offending command
     public void shouldPointToSameExecutableCommandWithConsistentArgumentCount() {
         // given
         final Map<Class<? extends ExecutableCommand>, Integer> mandatoryArguments = new HashMap<>();

src/test/java/fr/xephi/authme/command/CommandMapperTest.java

@@ -1,5 +1,6 @@
 package fr.xephi.authme.command;
 
+import fr.xephi.authme.command.help.HelpProvider;
 import fr.xephi.authme.output.Messages;
 import fr.xephi.authme.permission.PermissionsManager;
 import org.bukkit.command.CommandSender;
@@ -42,7 +43,7 @@ public class CommandMapperTest {
     @Before
     public void setUpMocks() {
         permissionsManagerMock = mock(PermissionsManager.class);
-        mapper = new CommandMapper(commands, mock(Messages.class), permissionsManagerMock);
+        mapper = new CommandMapper(commands, mock(Messages.class), permissionsManagerMock, mock(HelpProvider.class));
     }
 
     // -----------