a generic pwmcontroller
escape json strings with "
Update PWMControl.h to end with a newline
proper decendance
Merge branch 'develop' of https://github.com/Ferengee/OfficeDistraction into feature/generic_pwm_control
Merge branch 'feature/generic_pwm_control' of https://github.com/Ferengee/OfficeDistraction into feature/generic_pwm_control
Added notification hook for discarting items
swapped out usage of RFMessageControl::getUnusedMessage by directly calling
Sorter::getUnusedItem
Fixed an execution order bug, sendAcknowledge modifies the message, which 
can lead to callback beeing called twice for the same message.
increased max retries to have higher succes rate
Made test receiver work as a pair. Added debugging output.
Merge branch 'feature/generic_pwm_control' into develop