use URL.EscapedPath now that we are on Go 1.5
use URL.EscapedPath now that we are on Go 1.5

Plus fix a typo in a comment

modulexcite/boulder,patf/boulder,letsencrypt/boulder,jcjones/boulder,jfrazelle/boulder,benileo/boulder,jsha/boulder,r0ro/boulder,kuba/boulder,ZCloud-Firstserver/boulder,postfix/boulder,deserted/boulder,hlandauf/boulder,kuba/boulder,jcjones/boulder,modulexcite/boulder,mehmooda/boulder,deserted/boulder,jfrazelle/boulder,jfrazelle/boulder,ibukanov/boulder,kuba/boulder,lucasallan/boulder,patf/boulder,lucasallan/boulder,KyleChamberlin/boulder,jsha/boulder,devpaul/boulder,benileo/boulder,deserted/boulder,ibukanov/boulder,KyleChamberlin/boulder,josephyzhou/boulder,bmw/boulder,sophie-h/boulder,r0ro/boulder,lucasallan/boulder,sophie-h/boulder,mozmark/boulder,kuba/boulder,ibukanov/boulder,mehmooda/boulder,ZCloud-Firstserver/boulder,bmw/boulder,josephyzhou/boulder,benileo/boulder,mozmark/boulder,mozmark/boulder,r0ro/boulder,mozmark/boulder,josephyzhou/boulder,jsha/boulder,benileo/boulder,devpaul/boulder,sophie-h/boulder,modulexcite/boulder,deserted/boulder,patf/boulder,devpaul/boulder,bmw/boulder,modulexcite/boulder,letsencrypt/boulder,mehmooda/boulder,letsencrypt/boulder,jcjones/boulder,jfrazelle/boulder,postfix/boulder,hlandauf/boulder,postfix/boulder,postfix/boulder,hlandauf/boulder,devpaul/boulder,patf/boulder,r0ro/boulder,mehmooda/boulder,KyleChamberlin/boulder,hlandauf/boulder,jcjones/boulder,josephyzhou/boulder,KyleChamberlin/boulder,ZCloud-Firstserver/boulder,ZCloud-Firstserver/boulder