versions. The API is now fairly stable but when new calls/features are added
they are listed here. Anything pre 0.2.x is ignored.
+**0.6.0**
+ * add device path queries for uart
+ * add platform configuration querying
+ * gpio sample added
+ * improve i2c/spi write/read API for python & nodejs
+ * performance improvements on edison & galileo
+
**0.5.4**
* pwm read_* fix introduced in 0.5.3
* improved npmpkg support