class PhusionPassenger::AbstractInstaller

installer.instance_variable_get(:"@foo") # => "bar"
installer = AbstractInstaller.new(:foo => "bar")

variables, for example:
Create an AbstractInstaller. All options will be stored as instance

def initialize(options = {})
	options.each_pair do |key, value|
		instance_variable_set(:"@#{key}", value)
	end
end