Made PSTR(...) part of logDeveloper macro. Had to split it in two macros: logDeveloper and logDeveloperVaArg. One without arguments and one with arguments.
Removed logDeveloperVaArg and made logDeveloper ##__VA_ARGS___
Should have read the docs earlier.
move repeated PSTR string to const to save space
removed extraneous newline in printJsonTemperatures
Merge branch 'feature/dynaconfig' of https://github.com/BrewPi/brewpi-avr into feature/dynaconfig