Basic Auth support for Etcd.
Basic Auth support for Etcd.

Fixes #859

hashicorp/vault,hashicorp/vault,deverton/hashicorp-vault,cimarron-pistoncloud/vault,joelthompson/vault,MonsantoCo/vault,annanay25/vault,jmhardison/vault,kingland/vault,tallpauley/vault,kenbreeman/vault,careyblack/vault,mgk/vault,joelthompson/vault,mgk/vault,kenbreeman/vault,jmhardison/vault,careyblack/vault,Aloomaio/vault,hashicorp/vault,annanay25/vault,Caiyeon/vault,hashbrowncipher/vault,naunga/vault,kenbreeman/vault,geckoboard/vault,andrewstuart/vault,michaelansel/vault,joelthompson/vault,sepiroth887/vault,careyblack/vault,Aloomaio/vault,MonsantoCo/vault,kingland/vault,jgcallero/vault,annanay25/vault,doubledutch/vault,hashicorp/vault,mgk/vault,deverton/hashicorp-vault,geckoboard/vault,annanay25/vault,rnaveiras/vault,mhurne/vault,mhurne/vault,lemondrank/vault,kenbreeman/vault,grunzwei/vault,andrewstuart/vault,doodles526/vault,mymercurialsky/vault,Banno/vault,wjam/vault,doubledutch/vault,tallpauley/vault,cimarron-pistoncloud/vault,hashbrowncipher/vault,hashicorp/vault,doodles526/vault,Aloomaio/vault,skippy/vault,danielsomerfield/vault,Banno/vault,Caiyeon/vault,geckoboard/vault,rnaveiras/vault,lemondrank/vault,jmhardison/vault,Aloomaio/vault,sepiroth887/vault,hartsock/vault,martin-ducar-gd/vault,jam-pot/vault,grunzwei/vault,chrishoffman/vault,grunzwei/vault,hartsock/vault,rnaveiras/vault,andrewstuart/vault,sepiroth887/vault,doubledutch/vault,annanay25/vault,danielsomerfield/vault,hartsock/vault,kingland/vault,hashbrowncipher/vault,chrishoffman/vault,memory/vault,andrewstuart/vault,sepiroth887/vault,kingland/vault,quixoten/vault,geckoboard/vault,ryon/vault,mgk/vault,rnaveiras/vault,michaelansel/vault,peteryhwong/vault,martin-ducar-gd/vault,doubledutch/vault,quixoten/vault,hartsock/vault,peteryhwong/vault,skippy/vault,ryon/vault,hashbrowncipher/vault,careyblack/vault,mymercurialsky/vault,LolalyLuo/vault,geckoboard/vault,jmhardison/vault,hashbrowncipher/vault,wjam/vault,lirao/vault,grunzwei/vault,joelthompson/vault,kenbreeman/vault,jmhardison/vault,rnaveiras/vault,doubledutch/vault,sepiroth887/vault,jam-pot/vault,hartsock/vault,quixoten/vault,LolalyLuo/vault,careyblack/vault,naunga/vault,kingland/vault,grunzwei/vault,quixoten/vault,andrewstuart/vault,jgcallero/vault,lirao/vault,hashicorp/vault,memory/vault