Close #95: lowercase all IDs

Fixes #94.

dom.bs

@@ -8007,7 +8007,7 @@ Firefox 12.0a1. -->
 
 <hr>
 
-The <dfn export for=Range id=dom-Range-toString>stringification behavior</dfn> must run
+The <dfn export for=Range id=dom-range-stringifier>stringification behavior</dfn> must run
 these steps:
 
 <ol>
@@ -8060,7 +8060,7 @@ to filter and traverse <a>node</a>
 Each {{NodeIterator}} and {{TreeWalker}} object also
 has an associated <dfn export id=concept-traversal-root for="traversal">root</dfn>
 <a>node</a>,
-<dfn export id=concept-traversal-whatToShow for="traversal">whatToShow</dfn> bitmask, and
+<dfn export id=concept-traversal-whattoshow for="traversal">whatToShow</dfn> bitmask, and
 <dfn export id=concept-traversal-filter for="traversal">filter</dfn> callback.
 
 To <dfn export id=concept-node-filter for=Node>filter</dfn> <var>node</var> run
@@ -8170,7 +8170,7 @@ attribute must return
 The <dfn attribute for="NodeIterator">filter</dfn>
 attribute must return <a for="traversal">filter</a>.
 
-To <dfn export id=concept-NodeIterator-traverse for="NodeIterator">traverse</dfn> in direction
+To <dfn export id=concept-nodeiterator-traverse for="NodeIterator">traverse</dfn> in direction
 <var>direction</var> run these steps:
 
 <ol>
@@ -8674,13 +8674,13 @@ interface DOMTokenList {
 </pre>
 
 <p>A {{DOMTokenList}} object has an associated ordered set of
-<dfn export id=concept-DTL-tokens for="DOMTokenList">tokens</dfn>, which is initially empty.
+<dfn export id=concept-dtl-tokens for="DOMTokenList">tokens</dfn>, which is initially empty.
 
 <p>A {{DOMTokenList}} object also has an associated <a for="/">element</a> and an <a>attribute</a>'s
 <a for=Attr>local name</a>.
 
 <p>A {{DOMTokenList}} object's
-<dfn export id=concept-DTL-update for="DOMTokenList">update steps</dfn> are to
+<dfn export id=concept-dtl-update for="DOMTokenList">update steps</dfn> are to
 <a>set an attribute value</a> for the associated <a for="/">element</a> using associated
 <a>attribute</a>'s <a for=Attr>local name</a> and the result of running the
 <a>ordered set serializer</a> for <a>tokens</a>.
@@ -8815,7 +8815,7 @@ method, when invoked, must run these steps:
   </ol>
 </ol>
 
-<p>The <dfn export for=DOMTokenList dom-DOMTokenList-toString>stringification behavior</dfn>
+<p>The <dfn export for=DOMTokenList id=dom-domtokenlist-stringifier>stringification behavior</dfn>
 must return the result of the <a>ordered set serializer</a> for <a>tokens</a>.