Using contain_class instead of include_class

Per rspec-puppet-1.0.1 warning:

DEPRECATION: include_class is deprecated. Use contain_class instead.
Called from .../vendor/gems/rspec-puppet-1.0.1/lib/rspec-puppet/
matchers/include_class.rb:7

Change-Id: I3cf9ac1ff9549b5bb1182010d42e3beee1efa4cc
Remove use of deprecated include_class matcher

include_class is deprecated since rspec-puppet 1.0.0.
contain_class should be used instead.

Closes-bug: #1263617
Change-Id: I517be522ee52abc3c8bbecbd0ad82958516f9100
Add Gemfile.lock to gitignore

Change-Id: I64f60cdbb9033f741e3b56b824adba9a9e112002
Merge "Remove use of deprecated include_class matcher"
Merge "Add Gemfile.lock to gitignore"
Make sure swift backend in-file documentation matches actual code.

Simply making sure that the in-file documentation matches the
manifest to avoid any confusion.

Change-Id: I0b890f575ec1c33dbd515d2454023bfa3ade041b