* Initial Pass
* Adds support for page visits counting by referrer
* Includes goal selection in entry and exit computation
* Adds goal-based entry and exit page stats, formatting, code cleanup
* Changelog
* Format
* Exit rate, visit duration, updated tests
* I keep forgetting to format :/
* Tests, last time
* Fixes double counting, exit rate >100%, relevant tests
* Fixes exit pages on filter and goal states
* Adds entry and exit filters, fixes various bugs
* Fixes discussed issues
* Format
* Fixes impossible case in tests
Originally, there were only 2 pageviews for `test-site.com`,`/` on `2019-01-01`, but that doesn't make sense when there were 3 sessions that exited on the same site/date.
* Format
* Removes boolean function parameter in favor of separate function
* Adds support for queries that use `page` filter as `entry-page`
* Format
* Makes loader/title interaction in sources report consistent
