Fix some README oversight and restore the clean_whitespace Rake task.

README.markdown

@@ -7,8 +7,8 @@ and map-reduce.
 
 ## Dependencies
 
-`riak-client` requires i18n and either json or yajl-ruby. For higher
-performance on HTTP requests, install the 'curb' or 'excon' gems. The
+`riak-client` requires i18n, builder, beefcake, and multi_json. For
+higher performance on HTTP requests, install the 'excon' gem. The
 cache store implementation requires ActiveSupport 3 or later.
 
 Development dependencies are handled with bundler. Install bundler

Rakefile

@@ -24,6 +24,25 @@ task :release => :gem do
   system "gem push pkg/#{gemspec.name}-#{gemspec.version}.gem"
 end
 
+desc "Cleans up white space in source files"
+task :clean_whitespace do
+  no_file_cleaned = true
+
+  Dir["**/*.rb"].each do |file|
+    contents = File.read(file)
+    cleaned_contents = contents.gsub(/([ \t]+)$/, '')
+    unless cleaned_contents == contents
+      no_file_cleaned = false
+      puts " - Cleaned #{file}"
+      File.open(file, 'w') { |f| f.write(cleaned_contents) }
+    end
+  end
+
+  if no_file_cleaned
+    puts "No files with trailing whitespace found"
+  end
+end
+
 desc "Run Unit Specs Only"
 RSpec::Core::RakeTask.new(:spec) do |spec|
   spec.rspec_opts = %w[--profile --tag ~integration --tag ~slow]