Update comment.
Improving the ADXL345 accelerometer device driver.

1. Improved setup to detect tap and free fall.
2. Updated example sketch.
Some news.
Merge pull request #124 from JJK801/master

Examples illustration for CosaWirelessDS18B20.
Refactoring MQTT example sketches. Introducing IoT folder.
Using __PRETTY_FUNCTION__ to improve trace printout.
Resize images