kaylieEB 4e3ecf8a38 Fix: Include pull requests in git ref search (#4411) ...

**Summary**

Fixes https://github.com/yarnpkg/yarn/issues/4369, a regression from previous refactor.
Include `pull` requests in ref search and test for it later when it's called by github resolver.

*BEFORE*
![before](https://user-images.githubusercontent.com/18429494/30309691-7aeabe2e-9741-11e7-8e34-c75413b83d99.png)


*AFTER*
![after](https://user-images.githubusercontent.com/18429494/30309693-7dcc3528-9741-11e7-8a74-bc7585fd6177.png)

**Test plan**

Added a unit test in `git/git-ref-resolver.js`

2017-09-12 10:54:57 +01:00

..

git-ref-resolver.js

Fix: Include pull requests in git ref search (#4411)

2017-09-12 10:54:57 +01:00

git-spawn.js

Fix: respect GIT_SSH env variable when calling Git and support plink (#4302)

2017-09-05 13:29:53 +03:00