rename trait ExtractForms to ContextExt (#239)

as follows #187

Author: fairingrey

examples/src/body_types.rs

@@ -1,7 +1,7 @@
 use serde::{Deserialize, Serialize};
 use tide::{
     error::ResultExt,
-    forms::{self, ExtractForms},
+    forms::{self, ContextExt},
     response, App, Context, EndpointResult,
 };
 

examples/src/multipart_form/mod.rs

@@ -1,6 +1,6 @@
 use serde::{Deserialize, Serialize};
 use std::io::Read;
-use tide::{forms::ExtractForms, response, App, Context, EndpointResult};
+use tide::{forms::ContextExt, response, App, Context, EndpointResult};
 
 #[derive(Serialize, Deserialize, Clone)]
 struct Message {

tide/src/forms.rs

@@ -8,15 +8,15 @@ use crate::{
 };
 
 /// An extension trait for `Context`, providing form extraction.
-pub trait ExtractForms {
+pub trait ContextExt {
     /// Asynchronously extract the entire body as a single form.
     fn body_form<T: serde::de::DeserializeOwned>(&mut self) -> BoxTryFuture<T>;
 
     /// Asynchronously extract the entire body as a multipart form.
     fn body_multipart(&mut self) -> BoxTryFuture<Multipart<Cursor<Vec<u8>>>>;
 }
 
-impl<State: Send + Sync + 'static> ExtractForms for Context<State> {
+impl<State: Send + Sync + 'static> ContextExt for Context<State> {
     fn body_form<T: serde::de::DeserializeOwned>(&mut self) -> BoxTryFuture<T> {
         let body = self.take_body();
         box_async! {