provide better samples and more

two samples now are included
improved the readme (changed from txt to md)
NEO_RGB doesn;t require 400khz support, and 400khz support by default
isn't compiled in

examples/NeoPixelTest/NeoPixelTest.pde

@@ -0,0 +1,44 @@
+#include <NeoPixelBus.h>
+
+#define pixelCount 4
+#define colorSaturation 128
+
+NeoPixelBus strip = NeoPixelBus(pixelCount, 8);
+
+RgbColor red = RgbColor(colorSaturation, 0, 0);
+RgbColor green = RgbColor(0, colorSaturation, 0);
+RgbColor blue = RgbColor(0, 0, colorSaturation);
+RgbColor white = RgbColor(colorSaturation);
+RgbColor black = RgbColor(0);
+
+void setup()
+{
+  // this resets all the neopixels to an off state
+  strip.Begin();
+  strip.Show();
+}
+
+
+void loop()
+{
+    delay(1000);
+
+    // set the colors, 
+    // if they don't match in order, you may need to use NEO_GRB flag
+    strip.SetPixelColor(0, red);
+    strip.SetPixelColor(1, green);
+    strip.SetPixelColor(2, blue);
+    strip.SetPixelColor(3, white);
+    strip.Show();
+
+    delay(3000);
+
+    // turn off the pixels
+    strip.SetPixelColor(0, black);
+    strip.SetPixelColor(1, black);
+    strip.SetPixelColor(2, black);
+    strip.SetPixelColor(3, black);
+    strip.Show();
+}
+
+