[Spec] First wave of migration to RSpec
[Spec] Finished migrating serialization specs
[Spec] Removed trailing whitespace
[Spec] More migration

Finished migrating command bus specs
Fixed RSpec on Travis
Removed extraneous code
Mass find and replace on unit test classes
[Spec] More migration

Migrated configuration specs
Changed autoloading and configuration extension
Fixed dependencies
Fixed gemspec file selection
[Spec] Finished migration
Merge branch 'feature-rspec' into develop