Update gopsutil godep dependency. Dont use godep go build anymore

godep seems to have a problem when dependencies have `internal`
packages. So removing `godep go build` and `godep go test` from the
build process in favor of just checking out the correct revisions using
`godep restore` into the regular GOPATH.

This basically means that we are not actually using anything within the
Godeps directory except Godeps.json. I should probably make a separate
go dependency management system that does this.

scripts/circle-test.sh

@@ -57,7 +57,7 @@ exit_if_fail make
 exit_if_fail godep go vet ./...
 exit_if_fail make docker-run-circle
 sleep 10
-exit_if_fail godep go test -race ./...
+exit_if_fail go test -race ./...
 
 # Simple Integration Tests
 #   check that version was properly set

scripts/package.sh

@@ -134,7 +134,8 @@ do_build() {
         rm -f $GOPATH_INSTALL/bin/$b
     done
 
-    godep go install -ldflags="-X main.Version $version" ./...
+    godep restore
+    go install -ldflags="-X main.Version $version" ./...
     if [ $? -ne 0 ]; then
         echo "Build failed, unable to create package -- aborting"
         cleanup_exit 1