Remove puppet 4.0 until rspec-puppet works with it and also add missing file_concat

Author: Stephen

.fixtures.yml

@@ -7,6 +7,9 @@ fixtures:
         puppetdb: "git://github.com/puppetlabs/puppetlabs-puppetdb.git"
         inifile: "git://github.com/puppetlabs/puppetlabs-inifile.git"
         concat: "git://github.com/ripienaar/puppet-concat.git"
+        'file_concat':
+          repo: 'git://github.com/electrical/puppet-lib-file_concat.git'
+          ref: '1.0.1'
         apt: "git://github.com/puppetlabs/puppetlabs-apt.git"
     symlinks:
         puppet: "#{source_dir}"

Gemfile

@@ -1,10 +1,10 @@
 # A sample Gemfile
 source "https://rubygems.org"
 
-gem 'puppet'
+gem 'puppet', '< 4.0.0'
 
 gem 'rake'
-gem 'rspec', '< 3.0.0'
+gem 'rspec'
 gem 'puppet-lint'
 gem 'beaker'
 gem 'beaker-rspec'