Fix typos and whitespace

Rakefile

@@ -7,10 +7,10 @@ desc "Run all examples"
 RSpec::Core::RakeTask.new(:spec) do |t|
   t.rspec_opts = %w[--color]
 end
-  
+
 RSpec::Core::RakeTask.new(:spec_with_chrome) do |t|
   t.rspec_opts = %w[--color]
-  #jruby buffers the progress formatter so travis doesnt see output often enough
+  # jruby buffers the progress formatter so travis doesn't see output often enough
   t.rspec_opts << '--format documentation' if RUBY_PLATFORM=='java'
   t.pattern = './spec{,/*/**}/*{_spec.rb,_spec_chrome.rb}'
 end

lib/capybara.rb

@@ -118,7 +118,7 @@ module Capybara
     #
     # By default, Capybara will try to run webrick.
     #
-    # @yield [app, port]                      This block recieves a rack app and port and should run a Rack handler
+    # @yield [app, port]                      This block receives a rack app and port and should run a Rack handler
     #
     def server(&block)
       if block_given?

lib/capybara/server.rb

@@ -36,7 +36,7 @@ module Capybara
     def initialize(app, port=Capybara.server_port, host=Capybara.server_host)
       @app = app
       @middleware = Middleware.new(@app)
-      @server_thread = nil # supress warnings
+      @server_thread = nil # suppress warnings
       @host, @port = host, port
       @port ||= Capybara::Server.ports[@app.object_id]
       @port ||= find_available_port

spec/rspec_spec.rb

@@ -12,7 +12,7 @@ describe 'capybara/rspec', :type => :feature do
       page.body.should include('Cookie set to test_cookie')
     end
 
-    it "...then it is not availbable in the next" do
+    it "...then it is not available in the next" do
       visit('/get_cookie')
       page.body.should_not include('test_cookie')
     end