Added gox build

.gitignore

@@ -1,4 +1,4 @@
 hostess
-main
+hostess_*
 coverage.out
 coverage.html

Makefile

@@ -10,5 +10,13 @@ test: build
 	@cd lib && go test -coverprofile=../coverage.out
 	@cd lib && go tool cover -html=../coverage.out -o ../coverage.html
 
+gox:
+	go get github.com/mitchellh/gox
+	gox -build-toolchain
+
+build-all: test
+	@which gox || make gox
+	gox -arch="amd64" -os="darwin" -os="linux"
+
 install: build test
 	cp main /usr/sbin/hostess