Merge pull request #407 from eunomie/docker-app-0.9.0-beta-1

bump docker-app to 0.9.0-beta1

Author: zelahi

plugins/app.installer

@@ -6,7 +6,7 @@ source "$(dirname "$0")/.common"
 
 GOPATH=$(go env GOPATH)
 REPO=https://github.com/docker/app.git
-COMMIT=v0.8.0
+COMMIT=v0.9.0-beta1
 DEST=${GOPATH}/src/github.com/docker/app
 
 build() {