Changed NonCamelCaseTypes lint to warn by default

Added allow(non_camel_case_types) to librustc where necesary

Tried to fix problems with non_camel_case_types outside rustc

fixed failing tests

Docs updated

Moved #[allow(non_camel_case_types)] a level higher.

markdown.rs reverted

Fixed timer that was failing tests

Fixed another timer

src/librustdoc/html/markdown.rs

@@ -24,6 +24,8 @@
 //! // ... something using html
 //! ```
 
+#[allow(non_camel_case_types)];
+
 use std::cast;
 use std::fmt;
 use std::io;

src/librustdoc/plugins.rs

@@ -15,12 +15,12 @@ use dl = std::unstable::dynamic_lib;
 
 pub type PluginJson = Option<(~str, json::Json)>;
 pub type PluginResult = (clean::Crate, PluginJson);
-pub type plugin_callback = extern fn (clean::Crate) -> PluginResult;
+pub type PluginCallback = extern fn (clean::Crate) -> PluginResult;
 
 /// Manages loading and running of plugins
 pub struct PluginManager {
     priv dylibs: ~[dl::DynamicLibrary],
-    priv callbacks: ~[plugin_callback],
+    priv callbacks: ~[PluginCallback],
     /// The directory plugins will be loaded from
     prefix: Path,
 }
@@ -53,7 +53,7 @@ impl PluginManager {
     ///
     /// This is to run passes over the cleaned crate. Plugins run this way
     /// correspond to the A-aux tag on Github.
-    pub fn add_plugin(&mut self, plugin: plugin_callback) {
+    pub fn add_plugin(&mut self, plugin: PluginCallback) {
         self.callbacks.push(plugin);
     }
     /// Run all the loaded plugins over the crate, returning their results