stack.sh fails for Cisco plugin with missing cisco_plugins.ini error

When the Cisco Nexus monolithic plugin is configured in the localrc,
stack.sh fails with the error message:
     sed: can't read /etc/neutron/plugins/cisco/cisco_plugins.ini:
          No such file or directory

This failure was introduced with the merge of change set 76992
(bug #1285884). Change set 76992 removed the copying of
Q_PLUGIN_EXTRA_CONF_FILES from the neutron project area to directories
under /etc/neutron. This copy from neutron to /etc is required by the
Cisco Nexus monolithic plugin, since this plugin follows the original
model for generating extra config files based on localrc settings:
 - Copy default config file(s) from neutron project to /etc using
   a relative path (relative to neutron and relative to /)
 - Modify the copies of the config file(s) using localrc settings
 - Add a --config-file command line setting for neutron server which
   points to the modified config file(s) under /etc

The fix is to add the copying of the default versions of the extra
config files from neutron to /etc into the cisco devstack script.

Change-Id: Ifbae197ed591f7cccfd6d51eae2b21e31eb0a409
Closes-Bug: #1295411
Add an option in lib/swift to increase max_header_size

With the increasing number of entries in the service_catalog header,
some projects will have a header bigger than 8192 and Swift cannot
handle headers of this size. Solum is the first one to have this issue

As a temporary hack to fix Solum's gate, we are increasing
the value of the max_header_size parameter in our "lib" script.

This patch makes this settings global to all projects using devstack,
so that in a near future, if a project has a service_catalog header
bigger than 8192, it doesn't have the same problems we had.

Closes bug 1316585

Change-Id: I5c15f8f9531839353c3d99e46d920688058ec33c
Merge "stack.sh fails for Cisco plugin with missing cisco_plugins.ini error"
Use urandom rather than openssl for password gen

I tried using devstack on a cloud image that didn't have openssl, so
it generated blank passwords and gave an error about openssl missing.
Using urandom should not require more than minimal shell tools.

Change-Id: Ib3091183eb1d85fc8cf7c76e47da24a04ae4791f
README.md reformatting.

Break the very long lines into less than 80 characters long lines.

Change-Id: I40deb0f2b6170308fe192971a3edbf48ca6190ad
Merge "Use urandom rather than openssl for password gen"
Merge "Add an option in lib/swift to increase max_header_size"