upgrade hacking module

- upgrades hacking to current version
- sorts new linting issues
- sorts bug with sys.reload on py3

Change-Id: I4a18abc93116667a2733e8aec619ac59ea73d630
Signed-off-by: Sorin Sbarnea <ssbarnea@redhat.com>

jenkins_jobs/cli/entry.py

@@ -17,6 +17,7 @@ import io
 import os
 import logging
 import platform
+import sys
 
 from stevedore import extension
 import yaml
@@ -26,6 +27,9 @@ from jenkins_jobs.config import JJBConfig
 from jenkins_jobs import utils
 from jenkins_jobs import version
 
+if sys.version_info[0] != 2:
+    from importlib import reload
+
 logging.basicConfig(level=logging.INFO)
 logger = logging.getLogger()