adopt latest task

Rakefile

@@ -1,12 +1,12 @@
 
 begin
-  require "#{dir = File.dirname(__FILE__)}/task/gemgem"
+  require "#{__dir__}/task/gemgem"
 rescue LoadError
-  sh 'git submodule update --init'
+  sh 'git submodule update --init --recursive'
   exec Gem.ruby, '-S', $PROGRAM_NAME, *ARGV
 end
 
-Gemgem.init(dir) do |s|
+Gemgem.init(__dir__) do |s|
   require 'jellyfish/version'
   s.name    = 'jellyfish'
   s.version = Jellyfish::VERSION

jellyfish.gemspec

@@ -8,7 +8,7 @@ Gem::Specification.new do |s|
   s.required_rubygems_version = Gem::Requirement.new(">= 0".freeze) if s.respond_to? :required_rubygems_version=
   s.require_paths = ["lib".freeze]
   s.authors = ["Lin Jen-Shin (godfat)".freeze]
-  s.date = "2016-03-10"
+  s.date = "2016-11-17"
   s.description = "Pico web framework for building API-centric web applications.\nFor Rack applications or Rack middleware. Around 250 lines of code.\n\nCheck [jellyfish-contrib][] for extra extensions.\n\n[jellyfish-contrib]: https://github.com/godfat/jellyfish-contrib".freeze
   s.email = ["godfat (XD) godfat.org".freeze]
   s.files = [
@@ -56,7 +56,7 @@ Gem::Specification.new do |s|
   "test/test_websocket.rb".freeze]
   s.homepage = "https://github.com/godfat/jellyfish".freeze
   s.licenses = ["Apache License 2.0".freeze]
-  s.rubygems_version = "2.6.1".freeze
+  s.rubygems_version = "2.6.8".freeze
   s.summary = "Pico web framework for building API-centric web applications.".freeze
   s.test_files = [
   "test/rack/test_builder.rb".freeze,