[fix] Dont allow - in uuids generated by forever. Fixes #66.

Author: indexzero

Diff for: lib/forever.js

@@ -448,7 +448,7 @@ forever.cleanLogsSync = function (processes) {
 // length ⌈bits/6⌉ of characters from the base64 alphabet.
 //
 forever.randomString = function (bits) {
-  var chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-+', 
+  var chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789_$', 
       rand, i, ret = '';
 
   //