get rid of special self presence object and incorporate that into roster

src/main/java/eu/siacs/conversations/entities/Account.java

@@ -116,10 +116,9 @@ public class Account extends AbstractEntity {
 	protected boolean online = false;
 	private OtrEngine otrEngine = null;
 	private XmppConnection xmppConnection = null;
-	private Presences presences = new Presences();
 	private long mEndGracePeriod = 0L;
 	private String otrFingerprint;
-	private Roster roster = null;
+	private final Roster roster = new Roster(this);
 	private List<Bookmark> bookmarks = new CopyOnWriteArrayList<>();
 
 	public Account() {
@@ -328,20 +327,8 @@ public class Account extends AbstractEntity {
 		this.rosterVersion = version;
 	}
 
-	public void updatePresence(String resource, int status) {
-		this.presences.updatePresence(resource, status);
-	}
-
-	public void removePresence(String resource) {
-		this.presences.removePresence(resource);
-	}
-
-	public void clearPresences() {
-		this.presences = new Presences();
-	}
-
 	public int countPresences() {
-		return this.presences.size();
+		return this.getRoster().getContact(this.getJid().toBareJid()).getPresences().size();
 	}
 
 	public String getPgpSignature() {
@@ -357,9 +344,6 @@ public class Account extends AbstractEntity {
 	}
 
 	public Roster getRoster() {
-		if (this.roster == null) {
-			this.roster = new Roster(this);
-		}
 		return this.roster;
 	}
 

src/main/java/eu/siacs/conversations/parser/PresenceParser.java

@@ -45,17 +45,6 @@ public class PresenceParser extends AbstractParser implements
 		}
 		final Jid from = packet.getFrom();
 		String type = packet.getAttribute("type");
-		if (from.toBareJid().equals(account.getJid().toBareJid())) {
-			if (!from.isBareJid()) {
-				if (type == null) {
-					account.updatePresence(from.getResourcepart(),
-							Presences.parseShow(packet.findChild("show")));
-				} else if (type.equals("unavailable")) {
-					account.removePresence(from.getResourcepart());
-					account.deactivateGracePeriod();
-				}
-			}
-		} else {
 		Contact contact = account.getRoster().getContact(packet.getFrom());
 		if (type == null) {
 			String presence;
@@ -107,7 +96,6 @@ public class PresenceParser extends AbstractParser implements
 		if (nick != null) {
 			contact.setPresenceName(nick.getContent());
 		}
-		}
 		mXmppConnectionService.updateRosterUi();
 	}
 

src/main/java/eu/siacs/conversations/services/XmppConnectionService.java

@@ -241,7 +241,6 @@ public class XmppConnectionService extends Service implements OnPhoneContactsLoa
 		@Override
 		public void onBind(final Account account) {
 			account.getRoster().clearPresences();
-			account.clearPresences(); // self presences
 			account.pendingConferenceJoins.clear();
 			account.pendingConferenceLeaves.clear();
 			fetchRosterFromServer(account);