Mulibuild update and zlib fix.

Author: asmorkalov

multibuild

@@ -12,9 +12,9 @@ def add_zlib_versions():
     for line in manylinux_policy_lines:
         if "ZLIB" in line:
             if len(line) > 22:
-                updated_line = line[:-2] + ', "1.2.9", "1.2.12"]'
+                updated_line = line[:-2] + ', "1.2.9", "1.2.12", "1.2.13"]'
             else:
-                updated_line = line[:-2] + '"1.2.9", "1.2.12"]'
+                updated_line = line[:-2] + '"1.2.9", "1.2.12", "1.2.12"]'
             print("auditwheel patch: replace policy line \"%s\" with \"%s\"" % (line, updated_line))
             manylinux_policy_replacement = line.replace(line, updated_line)
         else:

patch_auditwheel_whitelist.py

@@ -15,8 +15,5 @@ echo $ENABLE_CONTRIB > contrib.enabled
 echo $ENABLE_HEADLESS > headless.enabled
 echo $ENABLE_ROLLING > rolling.enabled
 set -x
-if [[ "$TRAVIS_OS_NAME" == "linux" ]]; then
-  pip install --upgrade pip
-fi
 install_run $PLAT
 set +x