erp5.util.testbrowser: Require zope.testbrowser >= 5.0.0 since 5a0b3763 so...

erp5.util.testbrowser: Require zope.testbrowser >= 5.0.0 since 5a0b3763 so update dependency accordingly.

setup.py

@@ -53,7 +53,7 @@ setup(name=name,
       ],
       extras_require={
         'testnode': ['slapos.core', 'xml_marshaller', 'psutil >= 0.5.0'],
-        'testbrowser': ['zope.testbrowser >= 3.11.1', 'z3c.etestbrowser'],
+        'testbrowser': ['zope.testbrowser >= 5.0.0', 'z3c.etestbrowser'],
         'benchmark': benchmark_install_require_list,
         'benchmark-report': [name+'[benchmark]', 'matplotlib', 'numpy'],
         'scalability_tester': [name+'[benchmark]', 'slapos.tool.nosqltester'],