Incorrect SimpleDHTErr* status returned by read(int pin, ...) and read2(int pin, ...) methods

[phd]

There is a nasty bug in read()/read2() methods taking the pin argument:

• int SimpleDHT::read(int pin, byte ptemperature, byte phumidity, byte pdata[40])
• int SimpleDHT11::read2(int pin, float ptemperature, float phumidity, byte pdata[40])
• int SimpleDHT22::read2(int pin, float ptemperature, float phumidity, byte pdata[40])

They do not have return statements, so they return random value as temperature reading status.

[phd]

Fix: https://github.com/winlinvip/SimpleDHT/pull/27

[tobiasisenberg]

Noticed the same behavior just now, and indeed your PR fixes the problem. Thanks!