[hm] Alarms are now checked against the float current temperature which should make the thresholds now seem more accurate

Before: Low Alarm=220F triggers at 220.9F
Now: Low Alarm=220F triggers at 220.0F
[hm] Switching back to int alarm compares.

Low: Arming point = Thresh + 1.0f, Trigger point = Thresh - 0.1f
High: Arming point = Thresh - 1.1f, Trigger point = Thresh
[hm] Remove level from the Debug_begin() call, not used anywhere yet
[hm] Alarm trigger comment clarification
[hm] Fix for ITPlus transmitters at exactly 32F
[hm] Move to Arduino 1.0.3
[hm] Disable some unused chip functions, the DIDR0 might actually improve ADC accuracy
[hm] Turn on RF send every 5 seconds by default now
[hm] 20130228 23,918 bytes