updated some of the notes on version3 and deleted the old version2 of analysis file for getting hit and launch points
changed the target to patches on the wall and added feedback to the 3 movies
Load all trajectories, all subjects, for a splitgame condition.
-- LoadExpt now accepts arguments to matlab's LOAD command, so you
   can choose what game variables to grab (optional)
-- getPairsInDirs treats each subdirectory as a subject/pair of subjects
   and produces a subject list!
partial: sum of normalized x/y/z velocities is an interesting hit-detector!
Merge branch 'master' into interpolants (keep 'em separated!)