add external dependencies: acorn, escodegen
and rollup for building
MODIFY
package.json
package.json
"scripts": {
"test": "node test/test.js"
},
+ "devDependencies": {
+ "rollup": "^0.58.2"
+ },
+ "dependencies": {
+ "acorn": "5.5.3",
+ "escodegen": "1.9.1"
+ },
"repository": {
"type": "git",
"url": "git+https://github.com/agoric/SES.git"

add external dependencies: acorn, escodegen

and rollup for building