use `execa` for better windows support#40

Open

tunnckoCore wants to merge 3 commits intoegoist:masterfrom

tunnckoCore:better-windows-support

Commits on Jun 6, 2018

use `execa` for better windows support
Charlike Mike Reagent
committed
do not JSON.stringify the script content
Charlike Mike Reagent
committed
ignore *.log files (like yarn-error.log) from git
Charlike Mike Reagent
committed