Change priority variable calculation to use float rather than double.
Change priority variable calculation to use float rather than double. Do not divide by zero if they are no parents or germline samples.
Remove debugging code.
Merge branch 'stable' of github.com:CampagneLaboratory/goby into stable

Conflicts:
	src/edu/cornell/med/icb/goby/alignments/SomaticVariationOutputFormat.java
Fix syntax errors.
Add enough germline bases that the coverage filter does not remove the somatic variation.
Improve changelog descriptions.