Use mdurl instead of copied encode.js, decode.js.

Removed lib/{encode,decode}.js.

Added mdurl to package.json.

Author: jgm

LICENSE

@@ -27,34 +27,6 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 ---
 
-lib/encode.js and lib/decode.js come from
-https://github.com/markdown-it/mdurl
-
-Copyright (c) 2015 Vitaly Puzrin, Alex Kocharin.
-
-Permission is hereby granted, free of charge, to any person
-obtaining a copy of this software and associated documentation
-files (the "Software"), to deal in the Software without
-restriction, including without limitation the rights to use,
-copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the
-Software is furnished to do so, subject to the following
-conditions:
-
-The above copyright notice and this permission notice shall be
-included in all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
-EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
-OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
-NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
-HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
-WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
-FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
-OTHER DEALINGS IN THE SOFTWARE.
-
----
-
 lib/normalize-reference.js is a slightly modified version of
 https://github.com/dmoscrop/fold-case:
 

lib/common.js

@@ -1,7 +1,7 @@
 "use strict";
 
-var encode = require('./encode');
-var decode = require('./decode');
+var encode = require('mdurl').encode;
+var decode = require('mdurl').decode;
 
 var C_BACKSLASH = 92;
 

lib/decode.js

@@ -18,6 +18,7 @@
   "scripts": { "test": "node ./test/test.js" },
   "dependencies": {
     "entities": "~ 1.1.1",
+    "mdurl": "~ 1.0.0"
   },
   "directories": {
       "lib": "./lib"