package/python-traitlets: bump to version 5.1.0

The package is now standalone (no dependencies) and supports
only python3.
Plus, indent with two spaces in the hash file.

Signed-off-by: Asaf Kahlon <asafka7@gmail.com>

package/python-traitlets/Config.in

@@ -1,9 +1,6 @@
 config BR2_PACKAGE_PYTHON_TRAITLETS
 	bool "python-traitlets"
-	select BR2_PACKAGE_PYTHON_ENUM34 if BR2_PACKAGE_PYTHON # runtime
-	select BR2_PACKAGE_PYTHON_SIX  # runtime
-	select BR2_PACKAGE_PYTHON_IPYTHON_GENUTILS  # runtime
-	select BR2_PACKAGE_PYTHON_DECORATOR  # runtime
+	depends on BR2_PACKAGE_PYTHON3
 	help
 	  A configuration system for Python applications.
 

package/python-traitlets/python-traitlets.hash

@@ -1,5 +1,5 @@
 # md5, sha256 from https://pypi.org/pypi/traitlets/json
-md5	3a4f263af65d3d79f1c279f0247077ef  traitlets-4.3.3.tar.gz
-sha256	d023ee369ddd2763310e4c3eae1ff649689440d4ae59d7485eb4cfbbe3e359f7  traitlets-4.3.3.tar.gz
+md5  19483ec0685e837912cff128209aa845  traitlets-5.1.0.tar.gz
+sha256  bd382d7ea181fbbcce157c133db9a829ce06edffe097bcf3ab945b435452b46d  traitlets-5.1.0.tar.gz
 # Locally computed sha256 checksums
-sha256	71c89129039b870cc92309466c4fbe8f285a82fa0ea36f0e840fa83979cbe31f  COPYING.md
+sha256  71c89129039b870cc92309466c4fbe8f285a82fa0ea36f0e840fa83979cbe31f  COPYING.md

package/python-traitlets/python-traitlets.mk

@@ -4,9 +4,9 @@
 #
 ################################################################################
 
-PYTHON_TRAITLETS_VERSION = 4.3.3
+PYTHON_TRAITLETS_VERSION = 5.1.0
 PYTHON_TRAITLETS_SOURCE = traitlets-$(PYTHON_TRAITLETS_VERSION).tar.gz
-PYTHON_TRAITLETS_SITE = https://files.pythonhosted.org/packages/75/b0/43deb021bc943f18f07cbe3dac1d681626a48997b7ffa1e7fb14ef922b21
+PYTHON_TRAITLETS_SITE = https://files.pythonhosted.org/packages/d5/bc/37d490908e7ac949614d62767db3c86f37bc5adb6129d378c35859a75b87
 PYTHON_TRAITLETS_LICENSE = BSD-3-Clause
 PYTHON_TRAITLETS_LICENSE_FILES = COPYING.md
 PYTHON_TRAITLETS_SETUP_TYPE = distutils