fleshed out event-system interface
final event concept now in comments
started events-simulate code
minor changes
EventHandler object
moved things around, added notes
EventHandler done
recorder and event_handler spun off
started rewriting rootfinder
drafted rootfinder
rootfinder compiles
work on wrapping odeint
odeint wrapper and rootfinder compile
started porting other solvers
basic range of explicit solvers exposed