micropython: update to latest

Signed-off-by: Roger D <rogerdammit@gmail.com>

lang/micropython/Makefile

@@ -8,7 +8,7 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=micropython
-PKG_VERSION=1.3.10-20150302-$(PKG_SOURCE_VERSION)
+PKG_VERSION=1.4.3-20150601-$(PKG_SOURCE_VERSION)
 PKG_RELEASE:=1
 
 PKG_MAINTAINER:=Roger D <rogerdammit@gmail.com>
@@ -17,7 +17,7 @@ PKG_LICENSE_FILES:=LICENSE
 
 PKG_SOURCE_PROTO:=git
 PKG_SOURCE_URL:=https://github.com/micropython/micropython.git
-PKG_SOURCE_VERSION:=f2a889564b3a215902622b040a1247af38cb8203
+PKG_SOURCE_VERSION:=3ac2d06bd13f1cedb8242eaacc6c608ac08c3520
 
 PKG_SOURCE_SUBDIR:=$(PKG_NAME)-$(PKG_VERSION)
 PKG_SOURCE:=$(PKG_SOURCE_SUBDIR).tar.gz