phpDocumentor/phpDocumentor2 — pull request #1401 by mvriel (2014-08-21 21:20:28+00:00)
Title: Refactored Transformer and TransformCommand

The goal of this refactoring was:

1. To move all output logic (logging) from the Transformer back to
the TransformCommand using events.
2. To allow writers to initialize themselves or the ProjectDescriptor
before all transformations are executed. This allows writers to set
up globals and other state using the ProjectDescriptor that other
writers could use. An example is the upcoming Search writer that can
inject a partial to show a search box tailored to a specific search
type.
3. To move behaviours out of the Transformer as to make it more lean
and loosen dependencies.
4. To clean up the code of the Transformer