* obtain bot nick from connection details instead of registry where appropriate
* irc.random_nick works again
* record own hostmask when connecting
* fix web-paste truncation by subtracting length of own hostmask from message length
* set irc.max_msg_len back to 510
* updated IRC numeric 378 to whoishost
* add sprunge.us to WebPaste
"Applet" is a much better name for the external command-line
scripts and programs that can be loaded as PBot commands. They
will no longer be confused with Perl modules.
https://en.wikipedia.org/wiki/Applet
