add syntax highlighting for new erb/builder rails templates

lib/uv_extensions.rb

@@ -37,6 +37,12 @@ def Uv.syntaxes
 
   def Uv.syntax_for_file file_name
     init_syntaxes unless @syntax_index
-    @syntax_index[File.extname(file_name)[1..-1]]
+    ext = File.extname(file_name)[1..-1]
+    # if the extension isn't in there, look for the 'full' extension,
+    # like '.html.erb'
+    if @syntax_index[ext].nil? && file_name =~ /[^\.]+\.(.*$)/
+      ext = $1 if ext != $1 
+    end
+    @syntax_index[ext]
   end
 end

syntax/html_rails.syntax

@@ -2,6 +2,9 @@
 name: HTML (Rails)
 fileTypes: 
 - rhtml
+- html.erb
+- xml.erb
+- js.erb
 scopeName: text.html.ruby
 uuid: 45D7E1FC-7D0B-4105-A1A2-3D10BB555A5C
 foldingStartMarker: |-

syntax/ruby_on_rails.syntax

@@ -2,6 +2,7 @@
 name: Ruby on Rails
 fileTypes: 
 - rxml
+- builder
 scopeName: source.ruby.rails
 uuid: 54D6E91E-8F31-11D9-90C5-0011242E4184
 foldingStartMarker: "(?x)^\n\