Work in progress on porting the humidity sensor
Added dj_timer_delay function to djtimer and renamed timer.c to djtimer.c for posix platform to be consistent with other platforms.
Using new dj_timer_delay in zwave code instead of old temporary delay function.
Removed copied Arduino timer code from humidity sensor and replaced it with dj_timer_delay. Sensor code is still quite big (5K?) and uses too much memory (~100 bytes), so keeping it disabled for now.
Merge branch 'humidity-sensor'

Conflicts:
	wukong/ComponentDefinitions/WuKongStandardLibrary.xml
Fixed to dj_timer_delay for posix platform
Moved unused libraries into deprecated folder
Moved unused platforms into deprecated folder