Allow manylinux2014 wheel upload

manylinux2014 platform tag is official per PEP599

see also pypa/manylinux#338

Author: mayeut

tests/unit/forklift/test_legacy.py

@@ -2250,6 +2250,8 @@ def test_upload_fails_without_permission(self, pyramid_config, db_request):
             "manylinux1_x86_64",
             "manylinux2010_i686",
             "manylinux2010_x86_64",
+            "manylinux2014_i686",
+            "manylinux2014_x86_64",
             "macosx_10_6_intel",
             "macosx_10_13_x86_64",
             # A real tag used by e.g. some numpy wheels

warehouse/forklift/legacy.py

@@ -103,6 +103,8 @@ def namespace_stdlib_list(module_list):
     "manylinux1_i686",
     "manylinux2010_x86_64",
     "manylinux2010_i686",
+    "manylinux2014_x86_64",
+    "manylinux2014_i686",
     "linux_armv6l",
     "linux_armv7l",
 }