Improved logging a bit. No functional changes.
Fixed Statistics.filteredList() so that really high values are correctly
filtered out. Previously was looking for value with biggest fractional
difference from the mean. But it turns out that if have a high outlier
value then the fractional difference for some non-outlier low values
would be greater than for the high outlier value. Fixed so that now
looks for the largest discrepency, value-mean, instead of a fractional
value. Definitely an important improvement for correctly filtering out
outliers.

Also changed some method names to make them more consistent.
Merge branch 'master' of ssh://git@github.com/Transitime/core.git
Fixed Statistics.filteredList() so that really high values are correctly
filtered out. Previously was looking for value with biggest fractional
difference from the mean. But it turns out that if have a high outlier
value then the fractional difference for some non-outlier low values
would be greater than for the high outlier value. Fixed so that now
looks for the largest discrepency, value-mean, instead of a fractional
value. Definitely an important improvement for correctly filtering out
outliers.

Also changed some method names to make them more consistent.