fixed output of .tld lookup
a few nice updates

* fix chat it ignore on prefix that aren't '.'
* fixed .at to actually work and give better output
* updated codepoints.py to work with new Unicode 7.0 chars
chagned response to 'pong'
a few smaller updates

* moved some code in irc.py so it doesn't spill partial lines in jenni's
  logging channel
* moved some stuff around in web.py
* added in heat index output to .wx-noaa