508 Fixes

Addresses #1021 mostly by adding label tags, generating unique element
ids as needed.

In the process, moved the label text that gets set in the
___ContentTypeView.js files to the respective handlebar templates; the
text was static as far as I could tell.

There are additional minor 508 improvements that can be made with the
tables (scope tags, header attributes)

src/main/template/param.handlebars

@@ -1,24 +1,24 @@
-<td class='code'>{{name}}</td>
+<td class='code'><label for='{{valueId}}'>{{name}}</label></td>
 <td>
 
 	{{#if isBody}}
 		{{#if isFile}}
-			<input type="file" name='{{name}}'/>
+			<input type="file" name='{{name}}' id='{{valueId}}'/>
 			<div class="parameter-content-type" />
 		{{else}}
 			{{#if default}}
-				<textarea class='body-textarea' name='{{name}}'>{{default}}</textarea>
+				<textarea class='body-textarea' name='{{name}}' id='{{valueId}}'>{{default}}</textarea>
         <br />
         <div class="parameter-content-type" />
 			{{else}}
-				<textarea class='body-textarea' name='{{name}}'></textarea>
+				<textarea class='body-textarea' name='{{name}}' id='{{valueId}}'></textarea>
 				<br />
 				<div class="parameter-content-type" />
 			{{/if}}
 		{{/if}}
 	{{else}}
 		{{#if isFile}}
-			<input type="file" name='{{name}}'/>
+			<input type="file" name='{{name}}' id='{{valueId}}'/>
 			<div class="parameter-content-type" />
 		{{else}}
 			{{#renderTextParam this}}