docs: fix code error in readme

closes #76
Remove execute bit from files

closes #77
tests refactor

 * drop hashish
 * drop mocha
 * findit 0.1.1 -> 2.0.0
 * superagent 0.14.1 -> 0.18.0
Fix callback hang in node.js 0.8 on errors
Release 3.2.10
Merge tag '3.2.10'