Add cross-compiling script

Author: surma

crosscompile.sh

@@ -0,0 +1,7 @@
+#!/bin/bash
+
+for target in darwin:amd64 linux:amd64 linux:386 linux:arm windows:amd64; do
+  echo "Compiling $target"
+  export GOOS=$(echo $target | cut -d: -f1) GOARCH=$(echo $target | cut -d: -f2)
+  bash -c "go build -o $(basename $(echo $PWD))_${GOOS}_${GOARCH} ."
+done