package/python-ipython-genutils: New package

Add 'ipython_genutils'[1] package to Buildroot. Needed by 'traitlets'.

[1] https://pypi.python.org/pypi/ipython_genutils

Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Reviewed-by: Yegor Yefremov <yegorslists@googlemail.com>
[Thomas: take into account comments made by Yegor:
 - fix alphabetic ordering in the DEVELOPERS file
 - fix comment in hash file
 - add license file]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
diff --git a/package/Config.in b/package/Config.in
index e00b162..e866562 100644
--- a/package/Config.in
+++ b/package/Config.in
@@ -740,6 +740,7 @@
 	source "package/python-ipaddress/Config.in"
 	source "package/python-ipy/Config.in"
 	source "package/python-ipython/Config.in"
+	source "package/python-ipython-genutils/Config.in"
 	source "package/python-itsdangerous/Config.in"
 	source "package/python-jinja2/Config.in"
 	source "package/python-jsonschema/Config.in"