Add additional comments and logging to components of the framework layer. WTD-518.
Add an application bootstrapper, responsible for handling the Angular bootstrapping phase of framework layer initialization. WTD-518.
Simplify the extension initializer by putting each phase's responsibilities into a specific class. WTD-518.
Begin implementation registration phase of framework layer initialization process. This phase is responsible for registering resolved extensions with Angular, in a manner than individual extensions can later request dependencies from. WTD-518.
