Added 'hello' example.

example/Makefile

@@ -3,15 +3,20 @@ USE_CLANG = 1
 
 ifdef USE_CLANG
 CC = clang++
-CFLAGS = -std=c++0x -stdlib=libc++
+CFLAGS = -std=c++0x -stdlib=libc++ -g
 else
 CC = g++
-CFLAGS = -std=c++11
+CFLAGS = -std=c++11 -g
 endif
 
+all: sample hello
+
 sample : sample.cc ../httpsvrkit.h
 	$(CC) -o sample $(CFLAGS) -I.. sample.cc
 
+hello : hello.cc ../httpsvrkit.h
+	$(CC) -o hello $(CFLAGS) -I.. hello.cc
+
 .PHONY : test
 test: sample
 	./sample