Provides status information, i.e. if there were any errors.
Usage
pbat.status(n=1,workFirst=FALSE)
Arguments
n
Returns the last `n' lines from the status file. If n=0, all
lines are returned.
workFirst
Whether to check for `./pbatRwork/pbatstatus.txt' or
`./pbatstatus.txt' first. Generally only semi-important internally,
but set this to true if you just typed pbat.unwork().