updated dockerfile to have ca-certificates in it

Dockerfile

 FROM alpine:3.5
 
+RUN apk update && apk add ca-certificates
+
 COPY ./jwt-tokenissuer /bin/
 
 USER nobody

glide.lock

 hash: fbcc70bf29d6df51236f1ecd69b24562437431708eda5bb737ea503fd7927b9b
-updated: 2017-04-04T19:28:33.764679907+02:00
+updated: 2017-04-06T09:18:23.422424373+02:00
 imports:
 - name: github.com/fsnotify/fsnotify
   version: 4da3e2cfbabc9f751898f250b49f2439785783a1
@@ -23,7 +23,7 @@ imports:
 - name: github.com/pelletier/go-buffruneio
   version: c37440a7cf42ac63b919c752ca73a85067e05992
 - name: github.com/pelletier/go-toml
-  version: e32a2e04744250647a72bf17da1b09befc03b6b1
+  version: fe206efb84b2bc8e8cfafe6b4c1826622be969e3
 - name: github.com/SermoDigital/jose
   version: 2bd9b81ac51d6d6134fcd4fd846bd2e7347a15f9
   subpackages:
@@ -41,7 +41,7 @@ imports:
 - name: github.com/spf13/jwalterweatherman
   version: fa7ca7e836cf3a8bb4ebf799f472c12d7e903d66
 - name: github.com/spf13/pflag
-  version: d16db1e50e33dff1b6cdf37596cef36742128670
+  version: 9a906f17374922ed0f74e1b2f593d3723f2ffb00
 - name: github.com/spf13/viper
   version: 84f94806c67f59dd7ae87bc5351f7a9c94a4558d
 - name: github.com/stretchr/testify
@@ -55,7 +55,7 @@ imports:
 - name: golang.org/x/oauth2
   version: 7fdf09982454086d5570c7db3e11f360194830ca
 - name: golang.org/x/sys
-  version: 493114f68206f85e7e333beccfabc11e98cba8dd
+  version: 39e3dc274464e7d2f663aa606a830611bae5f1db
   subpackages:
   - unix
 - name: golang.org/x/text