add 2d line plotter
zeromq helper functions to reduce code duplication
use ZmqHelpers in Sim
add glider optimizer
added 3d visualization to optimizer
constrain alpha/beta/airspeed, better initial guess
initial bank
correct initial velocity for glider optimization
initial angle for glider
different initial condition for optimizer
Merge branch 'master' of https://github.com/ghorn/cletus
Adapted types after merge.
Sending sequence number.