add hello world (cli & web) examples for go and ruby.

go/.gitignore

@@ -1,3 +1,6 @@
.go
qst
qst
examples/hello
examples/hello_web

go/examples/hello.go

@@ -0,0 +1,7 @@
package main
import "fmt"
func main() {
	fmt.Println("Hello, World!")
}

go/examples/hello.rb

@@ -0,0 +1 @@
puts "Hello, World!"

go/examples/hello_web.go

@@ -0,0 +1,17 @@
package main
import "fmt"
import "net/http"
func main() {
	http.HandleFunc("/", func(w http.ResponseWriter, req *http.Request) {
		name := req.URL.Path[1:]
		if name == "" {
			name = "World"
		}
		w.Write([]byte(fmt.Sprintf("Hello, %s!", name)))
	})
	fmt.Println("Running on :8080")
	http.ListenAndServe(":8080", nil)
}

go/examples/hello_web.rb

@@ -0,0 +1,11 @@
require 'webrick'
server = WEBrick::HTTPServer.new :Port => 8080
server.mount_proc '/' do |req, res|
  name = req.path == '/' ? "World" : req.path[1..-1]
  res.body = "Hello, #{name}!"
end
trap 'INT' do server.shutdown end
server.start