adds menu choser to default rake task

Rakefile

# Add your own tasks in files placed in lib/tasks ending in .rake,
# for example lib/tasks/capistrano.rake, and they will automatically be available to Rake.

require File.expand_path('../config/application', __FILE__)

Webapp::Application.load_tasks

### Custom

Rake::Task["default"].clear

require 'colorize'

task :default do
  tasks = `rake -T`.split("\n")
  tasks.each_with_index do |el, i|
    num = i + 1
    puts "#{num.to_s.rjust(3)}. #{el}"
  end
  print "Execute task: "
  val = STDIN.gets.chomp
  task = tasks[val.to_i-1].to_s.split(/\s+#/).first
  if task
    puts "Executing: #{task.yellow}"
    system task
  else
    puts 'Taks not found'.red
  end
end