module Middleman::CoreExtensions::Features::ClassMethods

def activate(feature)

activate MyFeatureModule

Alternatively, you can pass in a Middleman feature module directly.

activate :lorem

feature module and includes it.
It takes a underscore-separated symbol, finds the appropriate
This method is available in the project's `config.rb`. 
def activate(feature)
  feature = feature.to_s if feature.is_a? Symbol
  if feature.is_a? String
    feature = feature.camelize
    feature = Middleman::Features.const_get(feature)
  end
  register feature
end

def after_feature_init(&block)

Add a block/proc to be run after features have been setup 
def after_feature_init(&block)
  @run_after_features ||= []
  @run_after_features << block
end

def enable(feature_name)

Deprecated API. Please use `activate` instead. 
def enable(feature_name)
  $stderr.puts "Warning: Feature activation has been renamed from enable to activate"
  activate(feature_name)
  super(feature_name)
end

def new

Load features before starting server 
def new
  # Check for and evaluate local configuration
  local_config = File.join(self.root, "config.rb")
  if File.exists? local_config
    $stderr.puts "== Reading:  Local config" if logging?
    class_eval File.read(local_config)
    set :app_file, File.expand_path(local_config)
  end
  
  # Add in defaults
  default_features.each do |ext|
    activate ext
  end
  
  @run_after_features.each { |block| class_eval(&block) }
  super
end