Add C++ example.

examples/cpp/.gitignore

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+*.o
+.objs
+cpp.so
+assets.h
+cert

examples/cpp/README.md

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+Kore example showing how to use C++ support!
+
+All functions accessible to kore must have their prototypes wrapped with the extern keyword like so:
+```
+extern “C” {
+	int pageA(struct http_request *);
+	int pageB(struct http_request *);
+	int validatorA(struct http_request *, char *);
+}
+```
+
+You will also need to compile kore with the KORE_CPP_SUPPORT environment variable enabled:
+```
+	# env KORE_CPP_SUPPORT=1 make
+```
+
+Run:
+```
+	# kore run
+```

examples/cpp/conf/cpp.conf

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+# Placeholder configuration
+
+bind		127.0.0.1 8888
+load		./cpp.so
+ssl_dhparam	dh2048.pem
+
+domain 127.0.0.1 {
+	certfile	cert/server.crt
+	certkey		cert/server.key
+	static	/	page
+}

examples/cpp/dh2048.pem

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+-----BEGIN DH PARAMETERS-----
+MIIBCAKCAQEAn4f4Qn5SudFjEYPWTbUaOTLUH85YWmmPFW1+b5bRa9ygr+1wfamv
+VKVT7jO8c4msSNikUf6eEfoH0H4VTCaj+Habwu+Sj+I416r3mliMD4SjNsUJrBrY
+Y0QV3ZUgZz4A8ARk/WwQcRl8+ZXJz34IaLwAcpyNhoV46iHVxW0ty8ND0U4DIku/
+PNayKimu4BXWXk4RfwNVP59t8DQKqjshZ4fDnbotskmSZ+e+FHrd+Kvrq/WButvV
+Bzy9fYgnUlJ82g/bziCI83R2xAdtH014fR63MpElkqdNeChb94pPbEdFlNUvYIBN
+xx2vTUQMqRbB4UdG2zuzzr5j98HDdblQ+wIBAg==
+-----END DH PARAMETERS-----

examples/cpp/src/cpp.cpp

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+#include <kore/kore.h>
+#include <kore/http.h>
+
+#include "example_class.h"
+
+extern "C" {
+    int		page(struct http_request *);
+}
+
+int
+page(struct http_request *req)
+{
+    example_class example;
+    const char* str = example.a();
+	http_response(req, 200, static_cast<void*>(const_cast<char*>(str)), strlen(str));
+	return (KORE_RESULT_OK);
+}

examples/cpp/src/example_class.cpp

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+//
+//  example_class.cpp
+//  
+//
+//  Created by Geenz on 4/1/15.
+//
+//
+
+#include "example_class.h"
+
+example_class::example_class() {
+    
+}
+
+example_class::~example_class() {
+    
+}
+
+const char* example_class::a() {
+    return "Hello world!";
+}

examples/cpp/src/example_class.h

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+//
+//  example_class.h
+//  
+//
+//  Created by Geenz on 4/1/15.
+//
+//
+
+#ifndef ____example_class__
+#define ____example_class__
+
+#include <stdio.h>
+
+class example_class {
+    
+public:
+    example_class();
+    ~example_class();
+    
+    const char* a();
+};
+
+#endif /* defined(____example_class__) */