Cleanup: DES code

File: des.js
Tests Added: False
Changes:
- Fixed JSHint Errors
- Improved whitespace around operators

include/des.js

@@ -75,12 +75,13 @@
  * fine Java utilities: http://www.acme.com/java/
  */
 
-"use strict";
-/*jslint white: false, bitwise: false, plusplus: false */
+/* jslint white: false */
 
 function DES(passwd) {
+    "use strict";
 
     // Tables, permutations, S-boxes, etc.
+    // jshint -W013
     var PC2 = [13,16,10,23, 0, 4, 2,27,14, 5,20, 9,22,18,11, 3,
                25, 7,15, 6,26,19,12, 1,40,51,30,36,46,54,29,39,
                50,44,32,47,43,48,38,55,33,52,45,41,49,35,28,31 ],
@@ -88,6 +89,7 @@ var PC2 = [13,16,10,23, 0, 4, 2,27,14, 5,20, 9,22,18,11, 3,
         z = 0x0, a,b,c,d,e,f, SP1,SP2,SP3,SP4,SP5,SP6,SP7,SP8,
         keys = [];
 
+    // jshint -W015
     a=1<<16; b=1<<24; c=a|b; d=1<<2; e=1<<10; f=d|e;
     SP1 = [c|e,z|z,a|z,c|f,c|d,a|f,z|d,a|z,z|e,c|e,c|f,z|e,b|f,c|d,b|z,z|d,
            z|f,b|e,b|e,a|e,a|e,c|z,c|z,b|f,a|d,b|d,b|d,a|d,z|z,z|f,a|f,b|z,
@@ -128,6 +130,7 @@ SP8 = [b|f,z|e,a|z,c|f,b|z,b|f,z|d,b|z,a|d,c|z,c|f,a|e,c|e,a|f,z|e,z|d,
            c|z,b|d,b|e,z|f,a|e,a|d,c|d,c|e,z|f,z|z,z|z,c|d,b|d,b|e,a|f,a|z,
            a|f,a|z,c|e,z|e,z|d,c|d,z|e,a|f,b|e,z|d,b|d,c|z,c|d,b|z,a|z,b|f,
            z|z,c|f,a|d,b|d,c|z,b|e,b|f,z|z,c|f,a|e,a|e,z|f,z|f,a|d,b|z,c|e];
+    // jshint +W013,+W015
 
     // Set the key.
     function setKeys(keyBlock) {