Remove unused config_t::command_num field
Correct bracing style on status_t declaration
Extend reset_status() function's comment
Add comment to load_def_values() of status.c
Add status_t::last_cmdline_command field

And functions to update its value.
Update status_t::last_cmdline_command field

On saving each command-line history element.
Use status_t::last_cmdline_command for dot command
Document change of . normal mode command behaviour

Thanks to Ranousse.
Merge branch 'dot-command-after-startup'