Allow Pecan to use 'debuginfo' response field

Currently we have Pecan app improperly integrated with WSME, api
config does not include 'wsme' section. Therefore 'debuginfo'
response field intended to carry exception traceback when server
in debug mode is never used. This patch adds wsme section to api
config with debug field picked from ironic.conf.
This patch also adds documentation references for existing configs.

Change-Id: Iabc042a533c0e3357853a01267ea2252bd61e6e1
Closes-Bug: #1254002
Use addCleanup() in test_deploy_utils

addCleanup method used instead of direct 'stop' calls
after tests.

Change-Id: I4e01c108726d5165004fdcd6899e23bfa419393f
Imported Translations from Transifex

Change-Id: I4d6b088154ac9e04d8ddf1e2eceb3b8f759be683
Replace removed xrange in Python3

Built-in function xrange were used in Python 2 were removed in
Python3. Python3 uses range, we use range() to support both
Python2 and Python3.

Change-Id: Ib4e4f833866ed6653f75e0ace67f1d9fa493babf
Closes-bug: #1256159
Apply comments to 58558/4 post-landing

review.openstack.org/#/c/58558/4 was accidentally approved with
2 remaining comments. Apply these comments in this patch.

Change-Id: I42fc5784210cb6c9d91db1911b10c21dd31fc0cf
Merge "Apply comments to 58558/4 post-landing"
Merge "Allow Pecan to use 'debuginfo' response field"
Merge "Replace removed xrange in Python3"