Update exome multi-caller analysis with latest NA12878 reference materials. Provide better configuration file that runs out of the box with instructions, including allowing relative paths in input YAML.
Bump ipython-cluster-helper version to get fixes for Torque and PBS memory usage
Merge branch 'master' of https://github.com/chapmanb/bcbio-nextgen
Enforce indexing following alignment to avoid multiple index runs at subsequent parallelized steps
Provide larger memory values for retrieving versions in GATK/Picard since that is now a one time operation. Try to avoid issues on MacOSX #98
Reorder validation step to work with multiple variant callers