change MinVafFilter to VafFilter and allow max_value as well as min_value
fix the error checking and add test
add pass tests for max vaf
added check and test to ensure that max_vaf is larger than min_vaf
add fail test for max vaf
Update Picard version sorting for Picard-1.113
rename filter to vaf-cutoff to make it unique
Merge branch 'rna_seq'

changing MinVafFilter to work with min and max cutoff values
Reload to get any updates to output_dir from unarchiving.