function mount (glide, extensions, events) {
  let components = {}

  for (let name in extensions) {
    if (isFunction(extensions[name])) {
      components[name] = extensions[name](glide, components, events)
    } else {
      warn('Extension must be a function')
    }
  }

  for (let name in components) {
    if (isFunction(components[name].mount)) {
      components[name].mount()
    }
  }

  return components
}
Creates and initializes specified collection of extensions.
Each extension receives access to instance of glide and rest of components.

@param {Object} glide
@param {Object} extensions

@returns {Object}