RobotLocomotion/drake — pull request #426 by hongkai-dai (2014-09-25 17:29:40+00:00)
Title: add checkDependency for student snopt

Resolves #415
1. add 'studentSnopt' in `checkDependency`
2. `NonlinearProgram` set solver to 'default', which checks snopt, studentSnopt,fmincon,ipopt in sequence.