fix(deps): update path-exists to previous version

Closes #107

Author: Kent C. Dodds

package.json

@@ -38,7 +38,7 @@
     "lodash.clone": "4.3.2",
     "manage-path": "2.0.0",
     "opt-cli": "1.4.2",
-    "path-exists": "^3.0.0",
+    "path-exists": "^2.0.0",
     "spawn-command": "0.0.2"
   },
   "devDependencies": {