Advance the address instead of repeating for memory commands (#333)
Advance the address instead of repeating for memory commands (#333)

Adds a repeat repeat_count attribute to GenericCommand that allows a
command to determine if it's being called again by the user just
pressing enter. This allows the command, for example to advance forward
through memory, in the case of hexdump.

Hexdump and Dereference now use this.
hugsy/gef,hugsy/gef,hugsy/gef