fixed subset index retreival when using path range. made retrievl efficient by using pos, length values only for non-contigious recs
Merge branch 'master' of https://github.com/MG-RAST/Shock
added error passing
fixed subset index retreival when using range of 1
created shortcut to download full subset without explictly entering part range
fixed conflict
Merge pull request #157 from teharrison/master

fixed subset index retreival when using path range