Update for newer alpine with more and fresher packages

Author: ptman

Dockerfile

@@ -1,8 +1,8 @@
-FROM gliderlabs/alpine
+FROM alpine:3.4
 MAINTAINER Benedikt Lang <[email protected]>
-RUN apk-install bash go bzr git mercurial subversion openssh-client ca-certificates 
+RUN apk --no-cache add bash go bzr git mercurial subversion openssh-client ca-certificates
 
 RUN mkdir -p /go/src /go/bin && chmod -R 777 /go
 ENV GOPATH /go
 ENV PATH /go/bin:$PATH
-WORKDIR /go
+WORKDIR /go