caching/superblock.{h,cc}
Put nested_output in it's own file
Put error_state into into it's own file.
Move cache_check_steps.rb -> cache_steps.rb
[thin_restore] use full paths for includes.
fluff
Add a feature that tests failure when the output file is missed off the thin_restore command line.
Some work on cache_check and cache_restore
update ignore file