Fix doc warnings

Per Doug's email[0], 'warnerrors' in setup.cfg hasn't actually been
working for some time now, and we've piled up a few warnings. Fix these
before a pbr release to unbreak it gets pushed out and breaks our doc
builds.

[0] http://lists.openstack.org/pipermail/openstack-dev/2016-June/097849.html

Change-Id: I6576a56234918febb21e7e4860544eb952123c09

doc/source/index.rst

@@ -12,6 +12,13 @@ provisioning servers.
 Throughout the remainder of the document, Ironic Python Agent will be
 abbreviated to IPA.
 
+Index
+=====
+
+.. toctree::
+
+   troubleshooting
+
 How it works
 ============
 
@@ -350,4 +357,3 @@ Indices and tables
 * :ref:`genindex`
 * :ref:`modindex`
 * :ref:`search`
-* :ref:`troubleshooting`

ironic_python_agent/extensions/iscsi.py

@@ -151,7 +151,7 @@ class ISCSIExtension(base.BaseAgentExtension):
         """Expose the disk as an ISCSI target.
 
         :param wipe_disk_metadata: if the disk metadata should be wiped out
-        before the disk is exposed.
+                                   before the disk is exposed.
         """
         # If iqn is not given, generate one
         if iqn is None:

ironic_python_agent/hardware.py

@@ -354,12 +354,14 @@ class HardwareManager(object):
 
         If multiple hardware managers return the same step name, the following
         logic will be used to determine which manager's step "wins":
-          - Keep the step that belongs to HardwareManager with highest
-            HardwareSupport (larger int) value.
-          - If equal support level, keep the step with the higher defined
-            priority (larger int).
-          - If equal support level and priority, keep the step associated
-            with the HardwareManager whose name comes earlier in the alphabet.
+
+            * Keep the step that belongs to HardwareManager with highest
+              HardwareSupport (larger int) value.
+            * If equal support level, keep the step with the higher defined
+              priority (larger int).
+            * If equal support level and priority, keep the step associated
+              with the HardwareManager whose name comes earlier in the
+              alphabet.
 
         The steps will be called using `hardware.dispatch_to_managers` and
         handled by the best suited hardware manager. If you need a step to be

ironic_python_agent/tests/functional/base.py

@@ -71,13 +71,13 @@ class FunctionalBase(test_base.BaseTestCase):
                 **kwargs):
         """Send a request to the agent and verifies response.
 
-        :param: method type of request to send as a string
-        :param: path desired API endpoint to request, for example 'commands'
-        :param: expect_error error code to expect, if an error is expected
-        :param: expect_json whether to expect a JSON response. if True, convert
+        :param method: type of request to send as a string
+        :param path: desired API endpoint to request, for example 'commands'
+        :param expect_error: error code to expect, if an error is expected
+        :param expect_json: whether to expect a JSON response. if True, convert
                             it to a dict before returning, otherwise return the
                             Response object
-        :param **kwargs: keyword args to pass to the request method
+        :param kwargs: keyword args to pass to the request method
         :raises: HTTPError if an error is returned that was not expected
         :raises: AssertionError if a received HTTP status code does not match
                  expect_error