api.commands: added parse_flags()
config/commands: added :scout command
api.commands: fix quick/tab/cancel for aliased commands
config/commands: fix blocking in :scout, remove debug code
commands.scout: better handling of "."
commands.scout: added UNMARK, SMART_CASE, use set_search_method
fsobject.directory: turn self.filter into a regex
commands.scout: added PERM_FILTER flag
config/commands: replace commands with aliases to :scout

alias filter     scout -prt
alias find       scout -aet
alias mark       scout -mr
alias unmark     scout -Mr
alias search     scout -r
alias search_inc scout -rt
alias travel     scout -aefiklst