Merge branch 'release/v0.4.6' into develop
FIXES #20 by not running “cat” process in the background for genbank-postClone method
FIXING #25 by adding ability to choose assembly for GATK bundle build
FIXING #24 by not naming dbsnp file according to version
FIXING #23 by adding new 1000G SNPs resource and renaming 1000G to 1000G_omni
Fixes a number of bugs with GATK bundle resources
Merge branch 'release/v0.4.7'