Tests are failing 

Tests are both failing and depending on outdated rspec. The error is always the same:

```
    Failure/Error: Unable to find matching line from backtrace
     ActiveRecord::ConnectionNotEstablished:
       ActiveRecord::ConnectionNotEstablished
     # /Users/d4rky/.rvm/gems/ruby-2.1.1@ammeter/gems/activerecord-4.1.4/lib/active_record/connection_adapters/abstract/connection_pool.rb:541:in `retrieve_connection'
     # /Users/d4rky/.rvm/gems/ruby-2.1.1@ammeter/gems/activerecord-4.1.4/lib/active_record/connection_handling.rb:113:in `retrieve_connection'
     # /Users/d4rky/.rvm/gems/ruby-2.1.1@ammeter/gems/activerecord-4.1.4/lib/active_record/connection_handling.rb:87:in `connection'
     # /Users/d4rky/.rvm/gems/ruby-2.1.1@ammeter/gems/activerecord-4.1.4/lib/active_record/fixtures.rb:499:in `create_fixtures'
     # /Users/d4rky/.rvm/gems/ruby-2.1.1@ammeter/gems/activerecord-4.1.4/lib/active_record/fixtures.rb:984:in `load_fixtures'
     # /Users/d4rky/.rvm/gems/ruby-2.1.1@ammeter/gems/activerecord-4.1.4/lib/active_record/fixtures.rb:957:in `setup_fixtures'
     # /Users/d4rky/.rvm/gems/ruby-2.1.1@ammeter/gems/activerecord-4.1.4/lib/active_record/fixtures.rb:806:in `before_setup'
     # /Users/d4rky/.rvm/gems/ruby-2.1.1@ammeter/bundler/gems/rspec-rails-209d27471f15/lib/rspec/rails/adapters.rb:71:in `block (2 levels) in <module:MinitestLifecycleAdapter>'
     # /Users/d4rky/.rvm/gems/ruby-2.1.1@ammeter/bundler/gems/rspec-core-0b3dd0dd9cdd/lib/rspec/core/example.rb:299:in `instance_exec'
     # /Users/d4rky/.rvm/gems/ruby-2.1.1@ammeter/bundler/gems/rspec-core-0b3dd0dd9cdd/lib/rspec/core/example.rb:299:in `instance_exec'
     # /Users/d4rky/.rvm/gems/ruby-2.1.1@ammeter/bundler/gems/rspec-core-0b3dd0dd9cdd/lib/rspec/core/hooks.rb:430:in `block (2 levels) in run'
     # /Users/d4rky/.rvm/gems/ruby-2.1.1@ammeter/bundler/gems/rspec-core-0b3dd0dd9cdd/lib/rspec/core/example.rb:210:in `call'
     # /Users/d4rky/.rvm/gems/ruby-2.1.1@ammeter/bundler/gems/rspec-core-0b3dd0dd9cdd/lib/rspec/core/example.rb:210:in `block (2 levels) in <class:Procsy>'
     # /Users/d4rky/.rvm/gems/ruby-2.1.1@ammeter/bundler/gems/rspec-core-0b3dd0dd9cdd/lib/rspec/core/hooks.rb:432:in `run'
     # /Users/d4rky/.rvm/gems/ruby-2.1.1@ammeter/bundler/gems/rspec-core-0b3dd0dd9cdd/lib/rspec/core/hooks.rb:485:in `run'
     # /Users/d4rky/.rvm/gems/ruby-2.1.1@ammeter/bundler/gems/rspec-core-0b3dd0dd9cdd/lib/rspec/core/example.rb:308:in `with_around_example_hooks'
     # /Users/d4rky/.rvm/gems/ruby-2.1.1@ammeter/bundler/gems/rspec-core-0b3dd0dd9cdd/lib/rspec/core/example.rb:145:in `run'
     # /Users/d4rky/.rvm/gems/ruby-2.1.1@ammeter/bundler/gems/rspec-core-0b3dd0dd9cdd/lib/rspec/core/example_group.rb:496:in `block in run_examples'
     # /Users/d4rky/.rvm/gems/ruby-2.1.1@ammeter/bundler/gems/rspec-core-0b3dd0dd9cdd/lib/rspec/core/example_group.rb:492:in `map'
     # /Users/d4rky/.rvm/gems/ruby-2.1.1@ammeter/bundler/gems/rspec-core-0b3dd0dd9cdd/lib/rspec/core/example_group.rb:492:in `run_examples'
     # /Users/d4rky/.rvm/gems/ruby-2.1.1@ammeter/bundler/gems/rspec-core-0b3dd0dd9cdd/lib/rspec/core/example_group.rb:459:in `run'
     # /Users/d4rky/.rvm/gems/ruby-2.1.1@ammeter/bundler/gems/rspec-core-0b3dd0dd9cdd/lib/rspec/core/runner.rb:112:in `block (2 levels) in run_specs'
     # /Users/d4rky/.rvm/gems/ruby-2.1.1@ammeter/bundler/gems/rspec-core-0b3dd0dd9cdd/lib/rspec/core/runner.rb:112:in `map'
     # /Users/d4rky/.rvm/gems/ruby-2.1.1@ammeter/bundler/gems/rspec-core-0b3dd0dd9cdd/lib/rspec/core/runner.rb:112:in `block in run_specs'
     # /Users/d4rky/.rvm/gems/ruby-2.1.1@ammeter/bundler/gems/rspec-core-0b3dd0dd9cdd/lib/rspec/core/reporter.rb:54:in `report'
     # /Users/d4rky/.rvm/gems/ruby-2.1.1@ammeter/bundler/gems/rspec-core-0b3dd0dd9cdd/lib/rspec/core/runner.rb:108:in `run_specs'
     # /Users/d4rky/.rvm/gems/ruby-2.1.1@ammeter/bundler/gems/rspec-core-0b3dd0dd9cdd/lib/rspec/core/runner.rb:86:in `run'
     # /Users/d4rky/.rvm/gems/ruby-2.1.1@ammeter/bundler/gems/rspec-core-0b3dd0dd9cdd/lib/rspec/core/runner.rb:70:in `run'
     # /Users/d4rky/.rvm/gems/ruby-2.1.1@ammeter/bundler/gems/rspec-core-0b3dd0dd9cdd/lib/rspec/core/runner.rb:38:in `invoke'
     # /Users/d4rky/.rvm/gems/ruby-2.1.1@ammeter/bundler/gems/rspec-core-0b3dd0dd9cdd/exe/rspec:4:in `<main>'
     #
     #   Showing full backtrace because every line was filtered out.
     #   See docs for RSpec::Configuration#backtrace_exclusion_patterns and
     #   RSpec::Configuration#backtrace_inclusion_patterns for more information.
```
Same problem is visible on Travis - https://travis-ci.org/alexrothenberg/ammeter/jobs/26111951