Fix broken imports in docs

Here's what I get for not compiling :v

Related: rust-lang/rust#23314

src/lib.rs

@@ -26,11 +26,10 @@
 //!
 //! ```
 //! extern crate blake;
-//! use blake::Blake;
 //! # use std::iter::FromIterator;
 //!
 //! let mut result = [0; 64];
-//! let state = Blake::new(512).unwrap();
+//! let state = blake::Blake::new(512).unwrap();
 //!
 //! state.update("Zażółć ".as_bytes());
 //! state.update("gęślą ".as_bytes());
@@ -53,13 +52,12 @@
 //!
 //! ```
 //! extern crate blake;
-//! use blake::Blake;
 //! # use std::iter::FromIterator;
 //!
 //! let mut result_multi  = [0; 48];
 //! let mut result_single = [0; 48];
 //!
-//! let state = Blake::new(384).unwrap();
+//! let state = blake::Blake::new(384).unwrap();
 //! state.update("Zażółć ".as_bytes());
 //! state.update("gęślą ".as_bytes());
 //! state.update("jaźń".as_bytes());
@@ -128,9 +126,8 @@ pub fn hash(hashbitlen: i32, data: &[u8], hashval: &mut [u8]) -> Result<()> {
 ///
 /// ```
 /// # extern crate blake;
-/// # use blake::Blake;
 /// # use std::iter::FromIterator;
-/// let state = Blake::new(256).unwrap();
+/// let state = blake::Blake::new(256).unwrap();
 ///
 /// state.update(b"Abolish ");
 /// state.update(b"the ");
@@ -181,16 +178,14 @@ impl Blake {
     ///
     /// ```
     /// # extern crate blake;
-    /// # use blake::{Blake, BlakeError};
-    /// assert_eq!(Blake::new(0).map(|_| ()), Err(BlakeError::BadHashbitlen));
+    /// assert_eq!(blake::Blake::new(0).map(|_| ()), Err(blake::BlakeError::BadHashbitlen));
     /// ```
     ///
     /// Creating a 512-long state
     ///
     /// ```
     /// # extern crate blake;
-    /// # use blake::Blake;
-    /// Blake::new(512).unwrap();
+    /// blake::Blake::new(512).unwrap();
     /// ```
     pub fn new(hashbitlen: i32) -> Result<Blake> {
         let mut raw_state = native::malloc_hash_state();
@@ -224,13 +219,12 @@ impl Blake {
     ///
     /// ```
     /// # extern crate blake;
-    /// # use blake::Blake;
     /// # use std::iter::FromIterator;
     /// let mut result_unsalted = [0; 64];
     /// let mut result_salted   = [0; 64];
     ///
-    /// let state_unsalted = Blake::new(512).unwrap();
-    /// let state_salted   = Blake::new(512).unwrap();
+    /// let state_unsalted = blake::Blake::new(512).unwrap();
+    /// let state_salted   = blake::Blake::new(512).unwrap();
     ///
     /// state_salted.add_salt(b"Violent  murder  of  the  proles").unwrap();
     ///
@@ -258,11 +252,10 @@ impl Blake {
     ///
     /// ```
     /// # extern crate blake;
-    /// # use blake::Blake;
     /// # use std::iter::FromIterator;
     /// let mut result = [0; 64];
     ///
-    /// let state = Blake::new(512).unwrap();
+    /// let state = blake::Blake::new(512).unwrap();
     /// state.update("    Serbiańcy znowu się pochlali, ale w sumie".as_bytes());
     /// state.update("czegoż się po wschodnich słowianach spodziewać, swoją".as_bytes());
     /// state.update("drogą. I, jak to wszystkim homo sapiensom się dzieje".as_bytes());
@@ -297,17 +290,16 @@ impl Blake {
     ///
     /// ```
     /// # extern crate blake;
-    /// # use blake::Blake;
     /// # use std::iter::FromIterator;
     /// let mut result_224 = [0; 28];
     /// let mut result_256 = [0; 32];
     /// let mut result_384 = [0; 48];
     /// let mut result_512 = [0; 64];
     ///
-    /// let state_224 = Blake::new(224).unwrap();
-    /// let state_256 = Blake::new(256).unwrap();
-    /// let state_384 = Blake::new(384).unwrap();
-    /// let state_512 = Blake::new(512).unwrap();
+    /// let state_224 = blake::Blake::new(224).unwrap();
+    /// let state_256 = blake::Blake::new(256).unwrap();
+    /// let state_384 = blake::Blake::new(384).unwrap();
+    /// let state_512 = blake::Blake::new(512).unwrap();
     ///
     /// state_224.update(b"The lazy fox jumps over the lazy dog.");
     /// state_256.update(b"The lazy fox jumps over the lazy dog.");