Switch to dep from glide for dependency management (#1243)

* Switch to dep from glide for dependency management

* Update CI dockerfile to use dep instead of glide

* Wrong file extension

* Run 'dep ensure' after copying code

* Install glide to handle abci dependencies in testing

* Use `dep ensure -vendor-only` to setup vendor directory before installing source code on ci

test/docker/Dockerfile

@@ -14,8 +14,8 @@ WORKDIR $REPO
 
 # Install the vendored dependencies before copying code
 # docker caching prevents reinstall on code change!
-ADD glide.yaml glide.yaml
-ADD glide.lock glide.lock
+ADD Gopkg.toml Gopkg.toml
+ADD Gopkg.lock Gopkg.lock
 ADD Makefile Makefile
 RUN make get_tools
 RUN make get_vendor_deps
@@ -27,6 +27,7 @@ RUN bash scripts/install_abci_apps.sh
 # Now copy in the code
 COPY . $REPO
 
+
 RUN go install ./cmd/tendermint
 
 # expose the volume for debugging