-- Previously, on the fly indices didn't have dictionary set on the fly, so the GATK would read, add dictionary, and rewrite the index. This is now fixed, so that the on the fly index contains the reference dictionary when first written, avoiding the unnecessary read and write
-- Added a GenomeAnalysisEngine and Walker function called getMasterSequenceDictionary() that fetches the reference sequence dictionary. This can be used conveniently everywhere, and is what's written into the Tribble index
-- Refactored tribble index utilities from RMDTrackBuilder into IndexDictionaryUtils
-- VCFWriter now requires the master sequence dictionary
-- Updated walkers that create VCFWriters to provide the master sequence dictionary
-- Verified now to be correct at runtime
-- UnitTest covers this
-- createTypeDefault now takes a Type, not a Class, so that parameterized classes can have their parameter fetched in the defaults.
-- DocString function for types that create default outputs "stdout"
-- RodBinding now creates a makeUnbound default value automatically for you if your RodBinding isn't required
-- Removed warning about sparse help from TextFormattingUtils