Various Puppet lint fixes

* Fix following warnings:
    * double quoted string containing no variables
    * indentation of => is not properly aligned
    * mode should be represented as a 4 digit octal value or symbolic mode
    * string containing only a variable
    * top-scope variable being used without an explicit namespace
    * unquoted file mode
    * variable not enclosed in {}
* Fix following errors:
    * trailing whitespace found
    * two-space soft tabs not used
* Remove quotes around class in include/require statements

Change-Id: Ia920d848e1955612a6486ec8731309e6d3a70f63
Update modulefile and fixtures to use puppetlabs/inifile

cprice404/inifile was moved to the puppetlabs namespace on the forge
and github.

Change-Id: I853d6056273ccfeff7f03fc522afbaa6f4801b1f
Puppet Forge release 2.1.0

Updated README.md for Puppet Forge release 2.1.0
Updated Modulefile to version 2.1.0

Change-Id: Ia0c2d4c8079f825e163291e1d4ff23b0d16616e4
(cherry picked from commit f8b36489f48b6dbd06e62639658dc1890e301c78)
Disable 80chars/class_parameter_defaults checks

* Disable warnings for "line has more than 80 characters"
* Disable warnings for "parameterised class parameter without a default value"

We do not wish to track warnings for such violations.

Change-Id: Id4e7ab198575ebe8e0c6cb8803ab96495bac1d65
(cherry picked from commit 418e7c736b430cc4e103a52bef2e7ccafd68bbd6)
Improve Proxy Signing Directory Support

1. The signing_dir was being created on every swift node
when it's only needed on proxies:

  http://docs.openstack.org/grizzly/openstack-compute/install/apt/content/installing-and-configuring-the-proxy-node.html

2. The signing_dir was not configurable, even though
the OpenStack doc's show multiple references
(/var/cache/swift and /home/swift/keystone-signing).

Based off the following patch from master:
  https://review.openstack.org/#/c/40356/

Change-Id: I3eb00046fc535a32d7a1800d15489e9fe071373b
Merge remote-tracking branch 'upstream/stable/grizzly' into grizzly