remove some unused dependencies and use puma for real apps

[finishes #117021529]

Signed-off-by: Sarah McAlear <[email protected]>

Author: Gregg Van Hove

bookbinder.gemspec

@@ -17,7 +17,6 @@ Gem::Specification.new do |s|
   s.required_ruby_version = '~> 2.3.0'
   s.add_runtime_dependency 'fog-aws', ['~> 0.7.1']
   s.add_runtime_dependency 'ansi', ['~> 1.4']
-  s.add_runtime_dependency 'unf', ['~> 0.1']
   s.add_runtime_dependency 'middleman', ['~> 3.4.0']
   s.add_runtime_dependency 'middleman-livereload', ['~> 3.4.3']
   s.add_runtime_dependency 'middleman-syntax', ['~> 2.0']
@@ -27,7 +26,6 @@ Gem::Specification.new do |s|
   s.add_runtime_dependency 'css_parser'
   s.add_runtime_dependency 'puma'
   s.add_runtime_dependency 'rack-rewrite'
-  s.add_runtime_dependency 'therubyracer'
   s.add_runtime_dependency 'git', '~> 1.2.8'
   s.add_runtime_dependency 'nokogiri', ['1.6.7.2']
   s.add_runtime_dependency 'thor'

template_app/Gemfile

@@ -4,5 +4,6 @@ ruby '2.3.0'
 
 gem 'rack'
 gem 'rack-rewrite'
+gem 'puma'
 gem 'therubyracer'
 gem 'sendgrid-ruby'

template_app/Gemfile.lock

@@ -6,6 +6,7 @@ GEM
     libv8 (3.16.14.7)
     mimemagic (0.3.0)
     multipart-post (2.0.0)
+    puma (3.3.0)
     rack (1.5.2)
     rack-rewrite (1.5.0)
     ref (1.0.5)
@@ -22,6 +23,7 @@ PLATFORMS
   ruby
 
 DEPENDENCIES
+  puma
   rack
   rack-rewrite
   sendgrid-ruby