Clone and install go in the gos folder

bin/gvm-install

@@ -1,8 +1,12 @@
 #!/bin/bash
-
+INSTALL_ROOT=~/.gvm/gos/go-$2
 if [[ $1 == "install" ]]; then
   if [[ -n $2 ]]; then
     echo "Installing version $2"
+    echo " * Downloading..."
+    hg clone -u release.r$2 https://go.googlecode.com/hg/ $INSTALL_ROOT > /dev/null 2>&1
+    echo " * Compiling..."
+    cd $INSTALL_ROOT/src;./all.bash > /dev/null 2>&1
     exit 0
   else
     echo "ERROR: Please specifiy the version"