large wait (500 minutes) to avoid unnecessary spill to disk

had previously been an mbuffer
Merge pull request #5 from dkj/devel

large wait (500 minutes) to avoid unnecessary spill to disk
Merge pull request #54 from dozy/mbuffer_to_teepot

convert mbuffer and tee to teepot
Merge branch 'devel' of https://github.com/wtsi-npg/p4 into devel