v1.13.0

Support tagref.yml project configuration (#285)

* Support tagref.yml project configuration

* Keep installer pointed at current release

* Tidy config comment punctuation

* Set walker current directory to project root

* Support config ignore rules

* Leave repo config empty

* Inline config path resolution

* Inline project-relative path conversion

* Format unwrap as code in comment

* Clarify project-relative file path name