diff --git a/.travis.yml b/.travis.yml
index fd491e7aa4..3493d03052 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -6,8 +6,9 @@ php:
 before_script:
 # - pecl install channel://pecl.php.net/pthreads-3.1.6
  - echo | pecl install channel://pecl.php.net/yaml-2.0.2
- - git clone https://github.com/krakjoe/pthreads.git --depth=1
+ - git clone https://github.com/krakjoe/pthreads.git
  - cd pthreads
+ - git checkout caca8dc42a5d75ddfb39e6fd15337e87e967517e #master is broken - https://github.com/krakjoe/pthreads/issues/757
  - phpize
  - ./configure
  - make
diff --git a/src/pocketmine/Player.php b/src/pocketmine/Player.php
index b76957bb18..55d63bcd42 100644
--- a/src/pocketmine/Player.php
+++ b/src/pocketmine/Player.php
@@ -654,7 +654,6 @@ class Player extends Human implements CommandSender, ChunkLoader, IPlayer{
 		$this->loaderId = Level::generateChunkLoaderId($this);
 		$this->chunksPerTick = (int) $this->server->getProperty("chunk-sending.per-tick", 4);
 		$this->spawnThreshold = (int) (($this->server->getProperty("chunk-sending.spawn-radius", 4) ** 2) * M_PI);
-		$this->spawnPosition = null;
 		$this->gamemode = $this->server->getGamemode();
 		$this->setLevel($this->server->getDefaultLevel());
 		$this->boundingBox = new AxisAlignedBB(0, 0, 0, 0, 0, 0);
diff --git a/src/pocketmine/network/mcpe/RakLibInterface.php b/src/pocketmine/network/mcpe/RakLibInterface.php
index 77d4146ce2..216d8fa60f 100644
--- a/src/pocketmine/network/mcpe/RakLibInterface.php
+++ b/src/pocketmine/network/mcpe/RakLibInterface.php
@@ -54,7 +54,7 @@ class RakLibInterface implements ServerInstance, AdvancedSourceInterface{
 	private $players = [];
 
 	/** @var string[] */
-	private $identifiers;
+	private $identifiers = [];
 
 	/** @var int[] */
 	private $identifiersACK = [];
@@ -63,9 +63,7 @@ class RakLibInterface implements ServerInstance, AdvancedSourceInterface{
 	private $interface;
 
 	public function __construct(Server $server){
-
 		$this->server = $server;
-		$this->identifiers = [];
 
 		$this->rakLib = new RakLibServer($this->server->getLogger(), $this->server->getLoader(), $this->server->getPort(), $this->server->getIp() === "" ? "0.0.0.0" : $this->server->getIp(), false);
 		$this->interface = new ServerHandler($this->rakLib, $this);
@@ -213,13 +211,10 @@ class RakLibInterface implements ServerInstance, AdvancedSourceInterface{
 			if($packet instanceof BatchPacket){
 				if($needACK){
 					$pk = new EncapsulatedPacket();
+					$pk->identifierACK = $this->identifiersACK[$identifier]++;
 					$pk->buffer = $packet->buffer;
 					$pk->reliability = $immediate ? PacketReliability::RELIABLE : PacketReliability::RELIABLE_ORDERED;
 					$pk->orderChannel = 0;
-
-					if($needACK === true){
-						$pk->identifierACK = $this->identifiersACK[$identifier]++;
-					}
 				}else{
 					if(!isset($packet->__encapsulatedPacket)){
 						$packet->__encapsulatedPacket = new CachedEncapsulatedPacket;
diff --git a/src/pocketmine/utils/Terminal.php b/src/pocketmine/utils/Terminal.php
index 3fec7fcb0f..0b53c2ef3e 100644
--- a/src/pocketmine/utils/Terminal.php
+++ b/src/pocketmine/utils/Terminal.php
@@ -57,7 +57,13 @@ abstract class Terminal{
 			if(isset($opts["disable-ansi"])){
 				self::$formattingCodes = false;
 			}else{
-				self::$formattingCodes = ((Utils::getOS() !== "win" and getenv("TERM") != "" and (!function_exists("posix_ttyname") or !defined("STDOUT") or posix_ttyname(STDOUT) !== false)) or isset($opts["enable-ansi"]));
+				self::$formattingCodes = (isset($opts["enable-ansi"]) or ( //user explicitly told us to enable ANSI
+					stream_isatty(STDOUT) and //STDOUT isn't being piped
+					(
+						getenv('TERM') !== false or //Console says it supports colours
+						(function_exists('sapi_windows_vt100_support') and sapi_windows_vt100_support(STDOUT)) //we're on windows and have vt100 support
+					)
+				));
 			}
 		}
 
diff --git a/start.ps1 b/start.ps1
index 9c0cf318f4..b7f1890ab9 100644
--- a/start.ps1
+++ b/start.ps1
@@ -25,7 +25,7 @@ if(Test-Path "PocketMine-MP.phar"){
 }
 
 function StartServer{
-	$command = "powershell " + $binary + " " + $file + " --enable-ansi " + $extraPocketMineArgs
+	$command = "powershell " + $binary + " " + $file + " " + $extraPocketMineArgs
 	iex $command
 }