Move embed-static.sh into scripts folder

Dockerfile

@@ -9,7 +9,7 @@ RUN apk add --update -t build-deps go git mercurial vim \
     && go get github.com/tools/godep \
     && cd /go/src/github.com/prometheus/prometheus \
     && $GOPATH/bin/godep restore && go get -d \
-    && ./utility/embed-static.sh web/static web/templates | gofmt > web/blob/files.go \
+    && ./scripts/embed-static.sh web/static web/templates | gofmt > web/blob/files.go \
     && go build -ldflags " \
             -X main.buildVersion  $(cat VERSION) \
             -X main.buildRevision $(git rev-parse --short HEAD) \

web/Makefile

@@ -20,7 +20,7 @@ SUFFIXES:
 blob/files.go: $(shell find templates/ static/ -type f)
 	# Note that embed-static.sh excludes map files and the
 	# non-minified bootstrap files.
-	../utility/embed-static.sh static templates | $(GOFMT) > $@
+	../scripts/embed-static.sh static templates | $(GOFMT) > $@
 
 clean:
 	-rm -f blob/files.go