Moved raylib webpage to docs folder

raylib webpage has been completely reorganized and moved from gh-pages
(a pain to work with) to docs folder. Useless libs have been removed,
webs have been renamed, etc.

Now it would be easier (hopefully) to update webpage. :)

docs/examples/web/textures_to_image.c

@@ -0,0 +1,102 @@
+/*******************************************************************************************
+*
+*   raylib [core] example - Retrieve image data from texture: GetTextureData()  (adapted for HTML5 platform)
+*
+*   NOTE: Images are loaded in CPU memory (RAM); textures are loaded in GPU memory (VRAM)
+*
+*   This example has been created using raylib 1.3 (www.raylib.com)
+*   raylib is licensed under an unmodified zlib/libpng license (View raylib.h for details)
+*
+*   Copyright (c) 2015 Ramon Santamaria (@raysan5)
+*
+********************************************************************************************/
+
+#include "raylib.h"
+
+#if defined(PLATFORM_WEB)
+    #include <emscripten/emscripten.h>
+#endif
+
+//----------------------------------------------------------------------------------
+// Global Variables Definition
+//----------------------------------------------------------------------------------
+int screenWidth = 800;
+int screenHeight = 450;
+
+// NOTE: Textures MUST be loaded after Window initialization (OpenGL context is required)
+
+Image image;
+Texture2D texture;
+
+
+//----------------------------------------------------------------------------------
+// Module Functions Declaration
+//----------------------------------------------------------------------------------
+void UpdateDrawFrame(void);     // Update and Draw one frame
+
+//----------------------------------------------------------------------------------
+// Main Enry Point
+//----------------------------------------------------------------------------------
+int main()
+{
+    // Initialization
+    //--------------------------------------------------------------------------------------
+    InitWindow(screenWidth, screenHeight, "raylib [textures] example - texture to image");
+    
+    image = LoadImage("resources/raylib_logo.png");  // Load image data into CPU memory (RAM)
+    texture = LoadTextureFromImage(image);           // Image converted to texture, GPU memory (RAM -> VRAM)
+    UnloadImage(image);                              // Unload image data from CPU memory (RAM)
+    
+    image = GetTextureData(texture);                 // Retrieve image data from GPU memory (VRAM -> RAM)
+    UnloadTexture(texture);                          // Unload texture from GPU memory (VRAM)
+    
+    texture = LoadTextureFromImage(image);           // Recreate texture from retrieved image data (RAM -> VRAM)
+    UnloadImage(image);                              // Unload retrieved image data from CPU memory (RAM)
+    
+#if defined(PLATFORM_WEB)
+    emscripten_set_main_loop(UpdateDrawFrame, 0, 1);
+#else
+    SetTargetFPS(60);   // Set our game to run at 60 frames-per-second
+    //--------------------------------------------------------------------------------------
+    
+    // Main game loop
+    while (!WindowShouldClose())    // Detect window close button or ESC key
+    {
+        UpdateDrawFrame();
+    }
+#endif
+
+    // De-Initialization
+    //--------------------------------------------------------------------------------------
+    UnloadTexture(texture);       // Texture unloading
+    
+    CloseWindow();        // Close window and OpenGL context
+    //--------------------------------------------------------------------------------------
+
+    return 0;
+}
+
+//----------------------------------------------------------------------------------
+// Module Functions Definition
+//----------------------------------------------------------------------------------
+void UpdateDrawFrame(void)
+{
+    // Update
+    //----------------------------------------------------------------------------------
+    // TODO: Update your variables here
+    //----------------------------------------------------------------------------------
+
+    // Draw
+    //----------------------------------------------------------------------------------
+    BeginDrawing();
+
+        ClearBackground(RAYWHITE);
+
+        DrawTexture(texture, screenWidth/2 - texture.width/2, screenHeight/2 - texture.height/2, WHITE);
+
+        DrawText("this IS a texture loaded from an image!", 300, 370, 10, GRAY);
+
+
+    EndDrawing();
+    //----------------------------------------------------------------------------------
+}