Add story on making file type coercion visible in the DSL reference.
Add test coverage requirements for file type coercion being performed when setting via setProperty() (via DynamicObject and via statically declared methods - such as Project.setProperty())
Added some info to basic file type coercion on coercing "relative" values on types that have no practical base.
Killed rouge sentence in spec.
Added story about documenting file type coercion for build logic authors.
Add story for migrating away from untyped setters to strongly typed setters for file type coercion.

This doesn't have any detail on how this will actually be implemented at this time as discussion is needed.