Fixing violations of E722 for flake8 checks

This change fixes violations of E722, the use of except without
specifying an exception type. For now the high-level Exception
class is used as a generic catchall. In the future these cases
will be updated to handle the specific exceptions expected.

kmip/core/config_helper.py

@@ -83,7 +83,7 @@ class ConfigHelper(object):
                 self.logger.debug(CONF_MSG.format(return_value,
                                                   CONFIG_FILE,
                                                   config_option_name))
-            except:
+            except Exception:
                 return_value = default_value
                 self.logger.debug(DEFAULT_MSG.format(default_value,
                                                      config_option_name))