Fix crates.io badges and update some links

README.md

@@ -1,6 +1,6 @@
 # rust-brotli
 
-[![crates.io](http://meritbadge.herokuapp.com/brotli)](https://crates.io/crates/brotli)
+[![crates.io](https://img.shields.io/crates/v/brotli.svg)](https://crates.io/crates/brotli)
 [![Build Status](https://travis-ci.org/dropbox/rust-brotli.svg?branch=master)](https://travis-ci.org/dropbox/rust-brotli)
 
 
@@ -156,7 +156,7 @@ This example illustrates a mechanism to avoid subsequent syscalls after the init
 
 ## Using the C interface
 
-rust-brotli is a drop-in replacement for the official http://github.com/google/brotli/ C
+rust-brotli is a drop-in replacement for the official https://github.com/google/brotli C
 implementation. That means you can use it from any place that supports that library.
 To build rust-brotli in this manner enter the c subdirectory and run make there
 

c/README.md

@@ -1,6 +1,6 @@
 # rust-brotli
 
-[![crates.io](http://meritbadge.herokuapp.com/brotli)](https://crates.io/crates/brotli)
+[![crates.io](https://img.shields.io/crates/v/brotli.svg)](https://crates.io/crates/brotli)
 [![Build Status](https://travis-ci.org/dropbox/rust-brotli.svg?branch=master)](https://travis-ci.org/dropbox/rust-brotli)
 
 * A fully compatible FFI for drop-in compatibiltiy with the https://github.com/google/brotli binaries
@@ -23,7 +23,7 @@ optimizations are employed.
 
 ## Using the C interface
 
-rust-brotli is a drop-in replacement for the official http://github.com/google/brotli/ C
+rust-brotli is a drop-in replacement for the official https://github.com/google/brotli C
 implementation. That means you can use it from any place that supports that library.
 To build rust-brotli in this manner enter the c subdirectory and run make there
 

src/enc/entropy_encode.rs

@@ -165,7 +165,7 @@ pub fn SortHuffmanTreeItems<Comparator: HuffmanComparator>(items: &mut [HuffmanT
    especially when population counts are longer than 2**tree_limit, but
    we are not planning to use this with extremely long blocks.
 
-   See http://en.wikipedia.org/wiki/Huffman_coding */
+   See https://en.wikipedia.org/wiki/Huffman_coding */
 pub fn BrotliCreateHuffmanTree(data: &[u32],
                                length: usize,
                                tree_limit: i32,