made muc join easier if muc server is known. added room to key words

src/eu/siacs/conversations/entities/Contact.java

@@ -139,6 +139,7 @@ public class Contact {
 			} else {
 				return (domainParts[0].equals("conf")
 						|| domainParts[0].equals("conference")
+						|| domainParts[0].equals("room")
 						|| domainParts[0].equals("muc")
 						|| domainParts[0].equals("sala") || domainParts[0]
 							.equals("salas"));

src/eu/siacs/conversations/ui/ContactsActivity.java

@@ -18,6 +18,7 @@ import android.os.Bundle;
 import android.preference.PreferenceManager;
 import android.text.Editable;
 import android.text.TextWatcher;
+import android.util.Log;
 import android.util.SparseBooleanArray;
 import android.view.ActionMode;
 import android.view.LayoutInflater;
@@ -433,7 +434,9 @@ public class ContactsActivity extends XmppActivity {
 	}
 
 	public void showIsMucDialogIfNeeded(final Contact clickedContact) {
-		if (clickedContact.couldBeMuc()) {
+		if (isMuc(clickedContact)) {
+			startConversation(clickedContact,clickedContact.getAccount(), true);
+		} else if (clickedContact.couldBeMuc()) {
 			AlertDialog.Builder dialog = new AlertDialog.Builder(this);
 			dialog.setTitle(getString(R.string.multi_user_conference));
 			dialog.setMessage(getString(R.string.trying_join_conference));
@@ -460,6 +463,17 @@ public class ContactsActivity extends XmppActivity {
 		}
 	}
 	
+	private boolean isMuc(Contact contact) {
+		ArrayList<String> mucServers = new ArrayList<String>();
+		for(Account account : accounts) {
+			if (account.getXmppConnection()!=null) {
+				mucServers.add(account.getXmppConnection().getMucServer());
+			}
+		}
+		String server = contact.getJid().split("@")[1];
+		return mucServers.contains(server);
+	}
+
 	public void startConversation(Contact contact, Account account, boolean muc) {
 		if (!contact.getOption(Contact.Options.IN_ROSTER)&&(!muc)) {
 			xmppConnectionService.createContact(contact);

src/eu/siacs/conversations/xmpp/XmppConnection.java

@@ -936,7 +936,7 @@ public class XmppConnection implements Runnable {
 				.iterator();
 		while (it.hasNext()) {
 			Entry<String, List<String>> pairs = it.next();
-			if (pairs.getValue().contains(feature)) {
+			if (pairs.getValue().contains(feature)&&pairs.getValue().size()==1) {
 				return pairs.getKey();
 			}
 			it.remove();