use patient mode of rlwrap to avoid getting prompt in help
error checking on breakpoints-file
error checking on CLASSPATH
remove dead code
use Getopt::Long in rlwrap-jdb-filter
track the current class and use it to complete breakpoints with no input
rearrange code
recognize ? for help
track whether VM is running and start as needed for next/step/cont
clean up command set, include in help
make cont the default command
remove b as a shortcut for clear
track current line and add shortcut to add breakpoint at current line
documentation