v3.0.0 Release Candidate 2

This release focused on internal refactoring and improving test coverage. Many discoverd bugs have been fixed.

Fixed

• Potential deadlock in bundles processor.
• Swallowing of exceptions raised within bundler factory and bundler factory streams.
• Virtual path rules in a config not being correctly checked for duplicate matchers.
• Fixed edge case where if the first file in a bundle failed to a resolve a file the resulting exception would never bubble up due to the source stream never being unpaused. #21
• Fixed issue where bundles using both scripts and styles would result in only files emitted as part of styles bundling appearing in the results callback data. #22
• Other undocumented assorted edge cases.