This addresses issue #796.

Since npm made --save the default behaviour, oc has been modifying the package.json file accidentally. This ensures that the package.json file remains untouched.

Please do not create a Pull Request without creating an issue first.
Any change needs to be discussed before proceeding.
Failure to do so may result in the rejection of the pull request.

Please provide enough information so that others can review your pull request:

Explain the details for making this change. What existing problem does the pull request solve?

Test plan (required)

Create a new project using oc init hello-world and then delete the following folders if they exist: node_modules, _package.
view the component's package.json file:

  "devDependencies": {
    "oc-template-es6-compiler": "1.1.8"
  }

Now run oc dev .
Notice that the package.json file changed:

  "devDependencies": {
    "oc-template-es6-compiler": "^1.1.8"
  }

Now apply this fix.

Notice that the package.json file remains unchanged.

Closing issues
closes #796