improves storageview and showtree
Merge pull request #43 from jhprinz/master

improves storageview and adds showtree
Merge remote-tracking branch 'upstream/master' into calculation
Added convenience methods; bootstrapping example.

Convenience methods for volume set, ensemble set, and OneWayShooterSet.
Bootstrapping seems to be working in the ala_dipeptide example, too.