Does not currently support SystemJS 1.0+. PR's welcome

SystemJS's text loading plugin. Text is loaded from the file into the variable as a string.

For SystemJS use, locate text.js in the application, and then locate it with map configuration:

System.config({
  map: {
    text: 'path/to/text.js'
  }
});

For installing with jspm, run jspm install text.

import myText from './mytext.html!text';