remove object in wsgi LOG.info

remove object in wsgi LOG.info

Method __init__ in Server class records log for wsgi server name, host
and port using its __dict__ which includes a socket object. i18n message
will deep copy each item's value in __dict__. In python2.6, deep copy
the socket object will raise "Exception RuntimeError" and can not be
caught. This makes cinder-api run into a hang loop. This patch uses the
related properties instead of __dict__ object to fix the problem.

Closes-Bug: #1365901
Change-Id: Ia6ac51f4849d369c54ac88b1587741a2d2beb40b