message: fix(compile-task): on windows machine
  Add portable shell commands to avoid problems with rm, mkdir, cp, ... in whatever machine with nodejs
diff: "release:minor": "npm version minor && npm publish",
  "release:major": "npm version major && npm publish",
  "changelog": "github_changelog_generator && git add CHANGELOG.md && git commit -am \"Updating changelog\"",
  - "compile": "rimraf lib/ && babel -d lib/ src/ && mkdir lib/public/ && cp src/public/* lib/public/",
  + "compile": "shx rm -rf lib/ && babel -d lib/ src/ && shx mkdir lib/public/ && shx cp src/public/* lib/public/",
  "watch": "babel --watch -d lib/ src/",
  "lint": "eslint-if-supported semistandard --fix",
  "mocha": "mocha --opts mocha.opts",
  "feathers": "^2.0.0",
  "istanbul": "^1.1.0-alpha.1",
  "mocha": "^3.0.0",
  + "shx": "~0.2.1",
  "request": "^2.69.0",
  - "rimraf": "^2.5.4",
  "semistandard": "^9.1.0",
  "sinon": "^1.17.3",
  "sinon-chai": "^2.8.0"
  