inverted pin states so that we can use memset to initialize. Saves 36 bytes.
rotary encoder direction didn't need fixing
* moved json optimized structures into progmem to save on SRAM.

SRAM reduced from 1041 to 751 - 290 bytes.

Use of memcpy_P increased size to by 64 bytes
Refactored sendControlConstants/sendConrolValues to common function. Saved 94 bytes. So a net gain of 30 bytes.
OnwWire 2.2 - merged changes
disable use of onewire crc table. Use algorithm instead.
Merge branch 'feature/dynaconfig' of https://github.com/BrewPi/brewpi-avr into feature/dynaconfig

Conflicts:
	brewpi_avr/RotaryEncoder.cpp
Fixed, PROGMEM string should be declared char string[] instead of char * string