Fix few specs broken by recent changes
Fix warning that was being caused by redefined const in specs
Fix 'stub' deprecation warnings in specs
Split server dsl & specs into seperate modules

Also include small fix removing reference to deprected rspec
mocks method + TODO comment
Extract Manufactured#subsystem_event? helper into Omega DSL

Specs updated to work & reflect new layout
Add Gemfile.lock to .gitignore