Add an example sketch, and a Travis CI control file

Fixes #4.

Signed-off-by: Csilla Nagyné Martinák <csilla@csillger.hu>

.travis.yml

@@ -0,0 +1,14 @@
+dist: trusty
+sudo: false
+os:
+  - linux
+install:
+  - git clone --depth 1 --recurse-submodules https://github.com/keyboardio/Kaleidoscope-Bundle-Keyboardio hardware/keyboardio
+script:
+  - make travis-test BOARD_HARDWARE_PATH=$(pwd)/hardware
+notifications:
+  email:
+    on_success: change
+    on_failure: change
+cache:
+  ccache: true

examples/LEDEffect-BootGreeting/LEDEffect-BootGreeting.ino

@@ -0,0 +1,55 @@
+/* -*- mode: c++ -*-
+ * Kaleidoscope-LEDEffect-BootGreeting -- Small greeting at boot time
+ * Copyright (C) 2017, 2018  Keyboard.io, Inc
+ *
+ * This program is free software: you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License as published by the Free Software
+ * Foundation, version 3.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
+ * details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <Kaleidoscope.h>
+#include <Kaleidoscope-LEDEffect-BootGreeting.h>
+
+#include "LED-Off.h"
+
+// *INDENT-OFF*
+const Key keymaps[][ROWS][COLS] PROGMEM = {
+  [0] = KEYMAP_STACKED
+  (
+    Key_LEDEffectNext, Key_1, Key_2, Key_3, Key_4, Key_5, Key_LEDEffectNext,
+    Key_Backtick,      Key_Q, Key_W, Key_E, Key_R, Key_T, Key_Tab,
+    Key_PageUp,        Key_A, Key_S, Key_D, Key_F, Key_G,
+    Key_PageDown,      Key_Z, Key_X, Key_C, Key_V, Key_B, Key_Escape,
+
+    Key_LeftControl, Key_Backspace, Key_LeftGui, Key_LeftShift,
+    Key_NoKey,
+
+    Key_skip,  Key_6, Key_7, Key_8,     Key_9,      Key_0,         Key_skip,
+    Key_Enter, Key_Y, Key_U, Key_I,     Key_O,      Key_P,         Key_Equals,
+               Key_H, Key_J, Key_K,     Key_L,      Key_Semicolon, Key_Quote,
+    Key_skip,  Key_N, Key_M, Key_Comma, Key_Period, Key_Slash,     Key_Minus,
+
+    Key_RightShift, Key_RightAlt, Key_Spacebar, Key_RightControl,
+    Key_NoKey),
+};
+// *INDENT-ON*
+
+KALEIDOSCOPE_INIT_PLUGINS(LEDControl,
+                          BootGreetingEffect,
+                          LEDOff);
+
+void setup() {
+  Kaleidoscope.setup();
+}
+
+void loop() {
+  Kaleidoscope.loop();
+}