Revert "Return html inside textareas when page is loaded. Closes #1025"

It seems like textareas must not contain HTML content according to the
HTML spec.

This reverts commit ca4781f.

Conflicts:
	lib/capybara/spec/session/node_spec.rb

lib/capybara/node/simple.rb

@@ -74,7 +74,7 @@ def path
       #
       def value
         if tag_name == 'textarea'
-          native.inner_html.sub(/\A\n/, '')
+          native.content.sub(/\A\n/, '')
         elsif tag_name == 'select'
           if native['multiple'] == 'multiple'
             native.xpath(".//option[@selected='selected']").map { |option| option[:value] || option.content  }

lib/capybara/rack_test/form.rb

@@ -60,7 +60,7 @@ def params(button)
           merge_param!(params, field['name'].to_s, (option['value'] || option.text).to_s) if option
         end
       when 'textarea'
-        merge_param!(params, field['name'].to_s, field.inner_html.to_s)
+        merge_param!(params, field['name'].to_s, field.text.to_s)
       end
     end
     merge_param!(params, button[:name], button[:value] || "") if button[:name]

lib/capybara/rack_test/node.rb

@@ -27,7 +27,7 @@ def set(value)
     elsif input_field?
       set_input(value)
     elsif textarea?
-      native.inner_html = value.to_s unless self[:readonly]
+      native.content = value.to_s unless self[:readonly]
     end
   end
 

lib/capybara/spec/session/node_spec.rb

@@ -58,14 +58,10 @@
       @session.find('//textarea[@id="additional_newline"]').value.should == "\nbanana"
     end
 
-    it "return any HTML content added to textarea" do
+    it "return any HTML content in textarea" do
       @session.find('//textarea[1]').set("some <em>html</em> here")
       @session.find('//textarea[1]').value.should == "some <em>html</em> here"
     end
-
-    it "return any HTML content in textarea" do
-      @session.find(:css, 'textarea#with-html').value.should == "contains <em>html</em>"
-    end
   end
 
   describe "#set" do

lib/capybara/spec/views/with_html.erb

@@ -37,7 +37,6 @@ banana</textarea>
 
 banana</textarea>
   <textarea readonly="readonly">textarea should not change</textarea>
-  <textarea id="with-html">contains <em>html</em></textarea>
   <a href="/redirect_back">BackToMyself</a>
   <a title="twas a fine link" href="/redirect">A link came first</a>
   <a title="a fine link" href="/with_simple_html">A link</a>