Fix autocompleter for all commands.

Multiple help-related changes - Make every command's POD doc have a single-line introductory description. This help is then used as a one-liner summary in Term::Shell. - Tie %cmd_map to IxHash to preserve hash elements' order. - Fix bug in Term::Shell's code related to command aliases. (Also emailed Term::Shell author to include the fix in next release.) - Remove run_() which already exists in Term::Shell. - Use Term::Shell's help facilities instead of manually redefining run_help() and other related commands. The complete POD documentation is still available for viewing if user invokes ./shelldap --help. - Completer functions are disabled right now (fix coming in the next commit)

Properly handle Ctrl+C; add '?' and 'man' aliases; don't import symbols Make Ctrl+C behave like in the shell (abort current line, redisplay) Add '?' and 'man' as aliases for help Add qw// on module 'use's to not import any symbols

Do not sort flaglist twice With this change, 'inspect'ing an element prints its attributes in a defined order: (requiredness, multivaluedness) Previously, the order was alphabetical and varying.

Make 'cat' default to '.' (cwd) instead of requiring argument

Improve command descriptions

Streamline %cmd_map %cmd_map was previously a hash containing: { real_function => alias_function, ... } Now the structure of the hash is: { alias_or_real_func => [ real_func/if_any, autocompleter_func ], ... } This allows for a more streamlined definition of commands and aliases, and makes it possible to keep all data in %cmd_map instead of having additional special cases.

Improve 'help' command POD documentation has been modified to list available shell commands using =head2 instead of =item. This, combined with run_help() modified to accept arguments, allows one to use 'help <command name>' to get help for a specific command, similar/equal to getting help for shell builtins in regular shells. E.g.: help cat help list