Bugfix: uint32s were not correctly translated by a42root (isEM was broken)
Merge pull request #201 from pwaller/bugfix/a42root-uint32

Bugfix: uint32s were not correctly translated by a42root (isEM was broken)
a4atlas: Add truth vertex list to Event
a4plot: Fix plotting script to work with data-only plots
a4atlas: Spacetimevariables added