Updates after review: removes from docker image and doc updates.

Dockerfile

@@ -25,7 +25,7 @@ RUN apk --no-cache --virtual .build-dependencies add git \
   && go build -ldflags="${LDFLAGS}" \
   && mv ${PROJECT} /${PROJECT} \
   && apk del .build-dependencies \
-  && rm -rf $GOPATH /var/cache/apk/*
+  && rm -rf $GOPATH /var/cache/apk/* $GOPATH/src /${PROJECT}-sources /usr/local/go
 
 WORKDIR /
 

README.md

@@ -217,7 +217,5 @@ Following check is performed for health and gtg endpoints:
 
 ### Logging
 
-* The application uses [logrus](https://github.com/Sirupsen/logrus); the log file is initialised in [main.go](main.go).
-* Logging requires an `env` app parameter, for all environments other than `local` logs are written to file.
-* When running locally, logs are written to console. If you want to log locally to file, you need to pass in an env parameter that is != `local`.
+* The application uses [logrus](https://github.com/Sirupsen/logrus).
 * NOTE: `/__build-info` and `/__gtg` endpoints are not logged as they are called every second from varnish/vulcand and this information is not needed in logs/splunk.