Unai Recio

fix(retry): uses same shell

2

### Description - What change is being made and why? Adds shell to retry command Fixes https://github.com/nick-fields/retry/issues/116 ### Testing No new tests

Here is the issue: http://stackoverflow.com/questions/34485377/performance-issue-with-svg-on-chrome-parallax-with-skrollr Someone has experienced something similar?