python-tornado: bump to 4.1

Signed-off-by: Yegor Yefremov <yegorslists@googlemail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/python-tornado/python-tornado.hash

@@ -1,2 +1,2 @@
 # Locally computed:
-sha256  900c5124ebdb6598ca8e8a0c5888f41a5f14117952d5515258e3d20222b21bfa  tornado-4.0.2.tar.gz
+sha256  99abd3aede45c93739346ee7384e710120121c3744da155d5cff1c0101702228  tornado-4.1.tar.gz

package/python-tornado/python-tornado.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-PYTHON_TORNADO_VERSION = 4.0.2
+PYTHON_TORNADO_VERSION = 4.1
 PYTHON_TORNADO_SOURCE = tornado-$(PYTHON_TORNADO_VERSION).tar.gz
 PYTHON_TORNADO_SITE = https://pypi.python.org/packages/source/t/tornado
 PYTHON_TORNADO_LICENSE = Apache-2.0