Suppress gdb's new thread/thread exited messages
Repair test: don't ask for unavailable derivs
Relax tolerance for CSOLNP
Preserve dimnames in assignments to MxMatrix slots
Prohibit @ in test scripts
Add test for a continuous time model (contributed by Charles Driver)
Added failing test for checkpointing output.
Refuse to compute derivs for no free parameters
Fix bug introduced in "rework reporting of iterations and optimizer status"
Fix hanging test