Add temperature control. - Split out console stuff to cons.[ch]. Set up stdio so we can use printf etc. - Use \r\n as the line terminator consistently. - Add OWGetTemp to get temperatures from a device. - Load/save settings in EEPROM, defaults loaded from flash. Nearly feature complete except you can't edit ROM IDs without a programming tool :) (To be fixed) Needs more testing.

026dc24d85e0e968713388039dcd90a7f89aa43d AVR_1_3
2c03ec600dbc1f52eb50237ad0c2125c657cd8a0 OWIRE_1_3
83c649cc59af7a6c2e47a13f66886b4ea2d8f61d AVR_1_1