Tidyexc

Feature
* Respect explicit line breaks in error messages ([`14a698e`](https://github.com/kalekundert/tidyexc/commit/14a698e09009dde3c2aaa058f99f9e9f9d7ea2b9))

Feature
* Allow __iadd__ to work with sequences or scalars ([`89dbe1e`](https://github.com/kalekundert/tidyexc/commit/89dbe1edf096a8bb5f942927151192e0d75fefa5))

Documentation
* Mention semantic versioning ([`fdd2797`](https://github.com/kalekundert/tidyexc/commit/fdd27970da9ec0a9bcce5b8ad9818b6a82d1e98a))

Feature
* Avoid line-wrapping paths ([`65c0149`](https://github.com/kalekundert/tidyexc/commit/65c014999026b95c12f0d30665f2d9a8c54ad4c0))

Documentation
* Write documentation ([`04b79f7`](https://github.com/kalekundert/tidyexc/commit/04b79f7bfa7238ddbf18f357475b9f4897a0696a))

Feature
* Make the stack functions class methods ([`bf93c60`](https://github.com/kalekundert/tidyexc/commit/bf93c6084c3f33895cc2b28e1ef17c7c3fce0e18))