Use ConfigParser instead of SafeConfigParser in Python 3
Use ConfigParser instead of SafeConfigParser in Python 3

The SafeConfigParser class has been renamed to ConfigParser in Python
3.2 [1]. The alias SafeConfigParser maybe removed in future versions of
Python 3. Use ConfigParser instead of SafeConfigParser in Python 3

[1] http://bugs.python.org/issue10627

Change-Id: I7b550cbd7b5d4c4fe3511c456b5f738030e07d5e
Closes-Bug: #1618666

NaohiroTamura/python-ironicclient,NaohiroTamura/python-ironicclient,openstack/python-ironicclient,openstack/python-ironicclient