itoa_fixedpoint: combined digit loop
simplified comment
Merge pull request #330 from jm493/fixedpoint

itoa_fixedpoint: combined digit loop
Fixed issue with some sensors due to wrong integer type.
Changed the type of tval.
Merge pull request #331 from Sync-/bmp085_fix

Fixed issue with some sensors due to wrong integer type.
Deal with different precisions in 1w temperatures

DS1822 and DS18B20 provide an additional decimal digit of precision,
which used to be discarded. This change introduces a ow_temp_t type to
store the number of decimal digits at no additional memory usage.
Merge pull request #332 from dnnr/1w-precision

Deal with different precisions in 1w temperatures
Merge pull request #1 from ethersex/master

Update from original