net/mosquitto: Upgrade 1.4.1 to 1.4.2

Bugfix release.  Full changelog available at:
http://mosquitto.org/2015/05/version-1-4-2-released/

Drops a patch now included upstream.

Signed-off-by: Karl Palsson <karlp@remake.is>

net/mosquitto/Makefile

@@ -9,14 +9,14 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=mosquitto
-PKG_VERSION:=1.4.1
+PKG_VERSION:=1.4.2
 PKG_RELEASE:=2
 PKG_LICENSE:=BSD-3-Clause
 PKG_LICENSE_FILES:=LICENSE.txt
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
 PKG_SOURCE_URL:=http://mosquitto.org/files/source/
-PKG_MD5SUM:=46008028563eb750c6aa93281ab2e181
+PKG_MD5SUM:=2c3b19686c04849ed4b183c63149bfe1
 PKG_BUILD_DIR:=$(BUILD_DIR)/$(PKG_NAME)-$(BUILD_VARIANT)/$(PKG_NAME)-$(PKG_VERSION)
 
 include $(INCLUDE_DIR)/package.mk

net/mosquitto/patches/101-qos2-inflight.patch

@@ -1,12 +0,0 @@
-diff --git a/lib/mosquitto.c b/lib/mosquitto.c
-index bd9dbd3..7314248 100644
---- a/lib/mosquitto.c
-+++ b/lib/mosquitto.c
-@@ -594,7 +594,6 @@ int mosquitto_publish(struct mosquitto *mosq, int *mid, const char *topic, int p
- 		pthread_mutex_lock(&mosq->out_message_mutex);
- 		_mosquitto_message_queue(mosq, message, mosq_md_out);
- 		if(mosq->max_inflight_messages == 0 || mosq->inflight_messages < mosq->max_inflight_messages){
--			mosq->inflight_messages++;
- 			if(qos == 1){
- 				message->state = mosq_ms_wait_for_puback;
- 			}else if(qos == 2){