NSX bits cannot be downloaded via HTTPS

[Andrey Danin]

Our custom Puppet providers RRPM/RDPKG [0][1] don't support HTTPS connections with untrusted certificates.

There are two ways to fix it.
1) Rewrite providers to skip certificate verification.
2) Restrict a user to provide HTTP-only URL in the Settings tab [2].

I propose to implement 2) in 5.1 and move 1) to 6.0.

[0] https://github.com/stackforge/fuel-library/blob/master/deployment/puppet/plugin_neutronnsx/lib/puppet/provider/package/rrpm.rb#L8
[1] https://github.com/stackforge/fuel-library/blob/master/deployment/puppet/plugin_neutronnsx/lib/puppet/provider/package/rdpkg.rb#L8
[2] https://github.com/stackforge/fuel-web/blob/master/nailgun/nailgun/fixtures/openstack.yaml#L274

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/116845

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/116845
Committed: https://git.openstack.org/cgit/stackforge/fuel-library/commit/?id=d0904bb4e06c7d0faed25005f19930f89f23a3e6
Submitter: Jenkins
Branch: master

commit d0904bb4e06c7d0faed25005f19930f89f23a3e6
Author: Igor Gajsin <email address hidden>
Date: Tue Aug 26 14:31:23 2014 +0400

    Now nsx bits can be downloaded via https

    puppet skip certificate verification while download packages

    Change-Id: I04cbdf5f3a17fa7e2f124ffa984986f5a64a2ada
    Closes-Bug: #1356352