Drop support for Ruby < 2.0.0

cocoapods.gemspec

@@ -38,9 +38,8 @@ Gem::Specification.new do |s|
 
   s.add_runtime_dependency 'colored',       '~> 1.2'
   s.add_runtime_dependency 'escape',        '~> 0.0.4'
-  s.add_runtime_dependency 'json_pure',     '~> 1.8'
   s.add_runtime_dependency 'open4',         '~> 1.3'
-  s.add_runtime_dependency 'activesupport', '>= 3.2.15', '< 4'
+  s.add_runtime_dependency 'activesupport', '>= 3.2.15'
   s.add_runtime_dependency 'nap',           '~> 0.8'
 
   s.add_development_dependency 'bundler', '~> 1.3'

lib/cocoapods/generator/acknowledgements/plist.rb

@@ -63,20 +63,15 @@ module Pod
 
       # !@group Private methods
 
-      # Returns the sanitized text with UTF-8 eliminating invalid characters if
-      # Ruby version >=1.9 else will return the text.
+      # Returns the sanitized text with UTF-8 invalid characters eliminated.
       #
       # @param  [String] text
       #         the text we want to sanitize.
       #
-      # @return [String] The sanitized text if Ruby >=1.9 else text.
+      # @return [String] The sanitized UTF-8 text.
       #
       def sanitize_encoding(text)
-        if RUBY_VERSION >= '1.9'
         text.encode('UTF-8', :invalid => :replace, :undef => :replace, :replace => '')
-        else
-          text
-        end
       end
 
       #-----------------------------------------------------------------------#

spec/unit/generator/acknowledgements/plist_spec.rb

@@ -27,7 +27,6 @@ describe Pod::Generator::Plist do
     }
   end
 
-  if RUBY_VERSION >= '1.9'
   it 'returns a correctly sanitized license hash for each pod' do
     license_text = 'Copyright © 2013–2014 Boris Bügling'
     @generator.stubs(:license_text).returns(license_text)
@@ -37,7 +36,6 @@ describe Pod::Generator::Plist do
       :FooterText => license_text,
     }
   end
-  end
 
   it 'returns nil for a pod with no license text' do
     @generator.expects(:license_text).returns(nil)