A bad JSON syntax now raises a human-understandable error
modifications to installation procedures
changed the commands name to be consistent with the BAMS paper.
Changed discover to ask and optimset to validate
removed the usage of Dataset.filepath() for greater backward compatibility
local file system query computes checksum only in validate
Checksumming is now performed in validate
optimizations
Removed verbosity in validate and added the potential to define simulations with experiments
ask and validate are now by default not assuming related experiments
validate now checks if opendap is available instead of ask
now handles available files without opendap services by printing a statement
files on remote tapes are now mentioned only once
Error handling