EPIC4

Bugfix release. See ChangeLog with the tarball for details.

Add /msg server:nick capabilities, code to display 437 numeric when its "Can't join channel.", new 'newaway' script, /window name, support for /break and /continue in /foreach and for /break in /switch, panic in parse_line() to trap for an invalid NULL before a deref, urlencode/urldecode stuff for DCCs with spaces in filenames, fix missing bounds checking for ^[P, ^[G, ^[] in strip_ansi(), /bind delete_previous_word, wouldn't delete all the way to SOL, replace_color to handle TERM_DOES_BRIGHT_BLINK better, support for 437 numeric (Channel Not Avail) to remove channel, bogus checks of Client->flags without mask against DCC_TYPES, bug where unstubbing an alias that wasnt defined could crash and more.

Fix damage that might be caused by dropping nicks in names reply handler and add $info(v), returns "epic4 pre2 004" to indicate general version info.

Fixed $lastlog(), so it counts from 1 instead of from 0 and dumb bug
that prevented /set mangle_outbound ROM from working.

I_DONT_TRUST_MY_USERS must now be defined to reject dcc's out of /etc, removed some bogus filesize checks between DCC GET and CHAT, fix dcc_searchlist to never return DELETEd entries. Fixed $winchan(refnum) to work correctly, fixed completion algorithm in find_in_server_list to be a bit smarter, added new features to $line() and add $lastlog() (see UPDATES).