Bump version to 0.4-dev instead of 0.3.1-dev
Bump version to 0.4-dev instead of 0.3.1-dev

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