Fixed gofmt formating, updated precommit hook

.hooks/pre-commit

@@ -0,0 +1,7 @@
+#!/usr/bin/env bash
+
+test -z "$(gofmt -s -l . | grep -v Godeps/_workspace/src/ | tee /dev/stderr)"
+if [ $? -gt 0 ]; then
+    echo "Some files aren't formatted, please run 'go fmt ./pkg/...' to format your source code before committing"
+    exit 1
+fi