chore(docs): don't rewrite colons in doc filenames

docs/src/gen-docs.js

@@ -23,8 +23,7 @@ writer.makeDir('build/docs/', true).then(function() {
   var fileFutures = [];
   docs.forEach(function(doc){
     // this hack is here because on OSX angular.module and angular.Module map to the same file.
-    var id = doc.id.replace('angular.Module', 'angular.IModule').
-                    replace(':', '_'); // rewrite : to _ to be GAE-friendly
+    var id = doc.id.replace('angular.Module', 'angular.IModule');
     fileFutures.push(writer.output('partials/' + doc.section + '/' + id + '.html', doc.html()));
   });
 

lib/nodeserver/server.js

@@ -109,9 +109,6 @@ StaticServlet.prototype.handleRequest = function(req, res) {
       sys.puts('Rewrite to ' + path);
   }
 
-  // rewrite : to _ to be GAE-friendly
-  path = path.replace(':', '_');
-
   // end of docs rewriting
 
   fs.stat(path, function(err, stat) {