towers can now be set to U
path information now sourced from level file
Added list of commands above terminal (still a bit rough around the edges)
Last 5 commands and error messages working in terminal window
Level controller testing working
post merge.  parser is not filtering out incorrect targets
misc. changes
more error checking in parseUpgrade
Merge remote-tracking branch 'benjis2/master'
Merge remote-tracking branch 'toms2/master'
merged benjis and toms
merged mikes
Merge remote-tracking branch 'blessed/master'
re-coded lasers as a tye of projectile