Remove the integrated file-watch

Remove the integrated file-watch.

### Reasons for change

The integrated watch:
* only watch a single file, but real-world projects are more complex and actually require a reload when any server-side file changes -- this needs to be customizable;
* duplicates [grunt-contrib-watch](https://github.com/gruntjs/grunt-contrib-watch), reinventing the wheel -- `grunt-contrib-watch` is a well maintained project;
* mix responsibilities in a single place (eg. the user may not want file-watch at all);
* does not allow for custom hooks, for example running linting on changes.

### Changes

Removed the watch event, and added explanation in the readme about the proper handling of a watch. This removes some 'magic', but this is in the best interest of users, being fully aware of what they are doing.

Bumped up the package version to `0.1.0` because the change is breaking.

### Testing Performed
* Ran `grunt`;
* Ran `grunt looptest`;
* Tested on a complex project with a bunch of server-side files.