Switch pseudo header order to mimic chrome

.gitignore

@@ -1,6 +1,7 @@
 target
 Cargo.lock
 h2spec
+.history
 
 # These are backup files generated by rustfmt
 **/*.rs.bk

src/client.rs

@@ -1022,6 +1022,12 @@ impl Builder {
         self
     }
 
+    /// Sets the header table size
+    pub fn header_table_size(&mut self, size: u32) -> &mut Self {
+        self.settings.set_header_table_size(Some(size));
+        self
+    }
+
     /// Sets the first stream ID to something other than 1.
     #[cfg(feature = "unstable")]
     pub fn initial_stream_id(&mut self, stream_id: u32) -> &mut Self {

src/frame/headers.rs

@@ -686,14 +686,14 @@ impl Iterator for Iter {
                 return Some(Method(method));
             }
 
-            if let Some(scheme) = pseudo.scheme.take() {
-                return Some(Scheme(scheme));
-            }
-
             if let Some(authority) = pseudo.authority.take() {
                 return Some(Authority(authority));
             }
             
+            if let Some(scheme) = pseudo.scheme.take() {
+                return Some(Scheme(scheme));
+            }
+
             if let Some(path) = pseudo.path.take() {
                 return Some(Path(path));
             }

src/frame/settings.rs

@@ -121,11 +121,9 @@ impl Settings {
         self.header_table_size
     }
     
-    /*
     pub fn set_header_table_size(&mut self, size: Option<u32>) {
         self.header_table_size = size;
     }
-    */
 
     pub fn load(head: Head, payload: &[u8]) -> Result<Settings, Error> {
         use self::Setting::*;