Fix invalid facilities documented in rootwrap.conf

The values user0 and user1 do not map to valid facility values.
local1, etc.  Using user0 results in a  pri value that does not map
back to a facility of the same name in syslog.

RFC5424 suggest values values of local0 through local7.  Setting
syslog_log_facility to one of those values results in a message with a
priority that can be mapped back to the original string value.

This fix adjusts the comment in rootwrap.conf to suggest the local
prefix instead of the user prefix.

Change-Id: I835ad17c817b8623e382368b39b06944470be480
Closes-bug: #1280879
ipt_mgr.ipv6 written in the wrong ipt_mgr.ipv4

This patch fixes the issue of writing the wrong firewall rule where an IP6
rule is written to IP4.

Change-Id: Ie7c75c71c9dcfbd9feabaffe4416ede80ff350d8
Closes-Bug:#1263877
Adds https support for metadata agent

Adds two configure options to support https client for metadata proxy
* auth_insecure: turn off verification of the certificate for ssl, or
* auth_ca_cert: CA cert to check against with for ssl.

Change-Id: I3ffb86ae9ce31931436a4e13957aae30eebf9d92
Closes-Bug: #1263872
ML2/vxlan/test: remove unnecessary self.addCleanup(cfg.CONF.reset)

This patch is follow up of change set of
4808f91eb2c245344517fc89c37c6c4c88e9051b bug/1260262 review/61694.
The change set adds unnecessary self.addCleanup(cfg.CONF.reset) to
VxlanTypeMultiRangeTest as pointed out. This patch Remove the line.

Change-Id: Ia6ce4bc346cf6320ba556e80689dadb7d84e5ee8
Use "!=" instead of "is not" when comparing two values

Change-Id: I2cd9575585dde7c44b528077a7bffa16379b1759
Closes-Bug: #1283019
Merge "ML2/vxlan/test: remove unnecessary self.addCleanup(cfg.CONF.reset)"
Merge "ipt_mgr.ipv6 written in the wrong ipt_mgr.ipv4"
Merge "Use "!=" instead of "is not" when comparing two values"
Merge "Fix invalid facilities documented in rootwrap.conf"
Merge "Adds https support for metadata agent"