switch working directory to the trace dir for gliding
support a crash command (for debugging) -- no more harmful than the restart
teach the SEGV handler about Mac OS X file descriptors
Govern rlim_max to 2^15 on systems on which we don't know how to enumerate fds.
This applies only to the SEGV handler supporting aynch parental anlaysis.
Merge branch 'master' of github.com:circonus-labs/reconnoiter