add basic Makefile, remove need for global grunt-cli

Makefile

+all: deps build
+
+deps:
+	go run build.go setup
+	godep restore
+	npm install
+
+build:
+	go run build.go build
+	npm run build
+
+test:
+	godep go test -v ./pkg/...
+	npm run test
+
+run:
+	./bin/grafana-server

README.md

@@ -103,8 +103,7 @@ npm (v2.5.0) and grunt (v0.4.5). Run the following:
 
 ```bash
 npm install
-npm install -g grunt-cli
-grunt
+npm run build
 ```
 
 ### Recompile backend on source change
@@ -145,4 +144,3 @@ please [sign the CLA](http://docs.grafana.org/project/cla/)
 
 Grafana is distributed under Apache 2.0 License.
 Work in progress Grafana 2.0 (with included Grafana backend)
-

build.go

@@ -306,7 +306,7 @@ func ChangeWorkingDir(dir string) {
 }
 
 func grunt(params ...string) {
-	runPrint("./node_modules/grunt-cli/bin/grunt", params...)
+	runPrint("./node_modules/.bin/grunt", params...)
 }
 
 func setup() {

package.json

@@ -62,6 +62,7 @@
     "npm": "2.14.x"
   },
   "scripts": {
+    "build": "grunt",
     "test": "grunt test",
     "coveralls": "grunt karma:coveralls && rm -rf ./coverage"
   },