update to reflect `--sticky-follow`
## 0.7.6-dev
- properly subtract previous statistic when handling `set_failure()` and `set_success()`
- detect and track redirects in `GooseRawRequest`
- - redirect of GooseClient base_url is sticky and affects subsequent requests (disable with `--no-sticky-follow`)
+ - `--sticky-follow` makes redirect of GooseClient base_url sticky, affecting subsequent requests
## 0.7.5 June 10, 2020
- store actual URL requested in GooseRawRequest
