Fix cx_Freeze

ci/travis/build.sh

@@ -6,7 +6,7 @@ eval "$(pyenv virtualenv-init -)"
 cd $HOME/build/ucoin-io/sakia
 pyenv activate sakia-env
 pip install coveralls
-pip install hg+https://bitbucket.org/anthony_tuininga/cx_freeze@default
+pip install cx_Freeze
 pip install -r requirements.txt
 python gen_resources.py
 python gen_translations.py

setup.py

@@ -14,7 +14,7 @@ print(os.environ)
 includes = ["sip", "re", "json", "logging",
             "hashlib", "os", "urllib",
             "ucoinpy", "pylibscrypt", "aiohttp", "asyncio",
-            "quamash", "jsonschema"]
+            "quamash", "jsonschema", "importlib.abc"]
 exclude = ['.git']
 packages = ["libnacl", "encodings", "jsonschema"]