Beet

Feature
* Add exception filter for json reporter ([`3949e02`](https://github.com/mcbeet/beet/commit/3949e02cc9a38a4c68abdf756fb5d9e5e6336783))

Feature
* Add stdin ([`1cb5c35`](https://github.com/mcbeet/beet/commit/1cb5c359463888ccd037e4ca5613386c45fdd66d))
* Add --tmpdir flag ([`124d1be`](https://github.com/mcbeet/beet/commit/124d1be33cbf8ef7fa4f5bfab083d9a704080f1f))

Feature
* Add json reporter ([`8e174a0`](https://github.com/mcbeet/beet/commit/8e174a0f4a62034753b24add0cfe5bd4d6d542df))
* Make it possible for plugins to catch errors ([`c1ad615`](https://github.com/mcbeet/beet/commit/c1ad615361284aeb5ce15250437794dd03ceb212))

Fix
* Type return -> continue in require ([`10acca2`](https://github.com/mcbeet/beet/commit/10acca249547504a00850d7ff233ebf0ef9fac7a))

Fix
* Only use field_map for namespace repr ([`53f0a88`](https://github.com/mcbeet/beet/commit/53f0a88f55f38bca455f63674a244d9b58efe72a))

Feature
* Refactor beet exceptions ([`65745c3`](https://github.com/mcbeet/beet/commit/65745c3e61bc9e34f783e4f7eeb854ed694bb57b))

Fix
* Better names for configurable plugins ([`cfcba0f`](https://github.com/mcbeet/beet/commit/cfcba0f4c0f0b010a8e81b49453e1ac2ce65cb8e))

Feature
* Use PackageablePath and ListOption in more places ([`c2ae76d`](https://github.com/mcbeet/beet/commit/c2ae76db4e29c074279a2316fd6b565c8f9fd8ea))
* Improve config overrides and add tests ([`228f034`](https://github.com/mcbeet/beet/commit/228f034bf98662341ee372f93e99315133251d76))
* Generalize packageable paths ([`b5ad8f0`](https://github.com/mcbeet/beet/commit/b5ad8f04feb2e3aa46780969a615b653550566e8))