Lectern

Feature

* Add lectern.contrib.tagged_function_shorthand ([`3ea2017`](https://github.com/mcbeet/lectern/commit/3ea201743f48b0614a9c5de2d7af5b91e0ca3995))

Feature

* Add error message when detecting badly formatted code blocks ([`025f4bb`](https://github.com/mcbeet/lectern/commit/025f4bb246b934978e9631d741df5f000654525c))
* Allow multiple directives in a paragraph ([`d43f32e`](https://github.com/mcbeet/lectern/commit/d43f32e83e090a012075cb11d434016251f720bb))

Fix

* Don't enforce argument names for directive protocol ([`a62a015`](https://github.com/mcbeet/lectern/commit/a62a015072eebe400a54482aa3c8a6bcb3418c40))

Feature

* Bump pack format ([`5d1818b`](https://github.com/mcbeet/lectern/commit/5d1818bf1f747745d94f0379ca86126bc887aa44))

Feature

* Add lectern.contrib.vanilla ([`c21e95d`](https://github.com/mcbeet/lectern/commit/c21e95d53be51cc4ba8b34922d581270570ca245))

Fix

* Extract overlay with relative path ([`e7be328`](https://github.com/mcbeet/lectern/commit/e7be328fd19e1a6f2e03f2d3498cd6375363404a))

Fix

* Handle missing directive ([`d88289f`](https://github.com/mcbeet/lectern/commit/d88289ff3f8aec6c22e9091796f668ea3144d4cb))