implemented delete

del_quote function was defined, but couldn't be called from the command
parser
somethingawful: use api_key hook instead of bot.config
stock.py: change to use yahoo API
Calculate change percentage correctly

Measuring percent change based on the current price instead of the
original price is silly; instead use change / old price
Merge pull request #90 from jstultz/fixstock

Calculate change percentage correctly
tvdb: don't download zip files, just use the xml endpoint
tag: allow boolean intersection searches
plugins/twitter: added hook.regex for twitter URLs

Also minor changes in output formatting
tag: fix `.tag <tag>` searching
add in giphy (.gif query)
random choice of first ten results, consistency with gis
Merge pull request #94 from bwreilly/master

Added GIF search plugin
tag.py: split .tag into .tag/.tags/.tagged, add automatic pagination
.near: show closest users to you
youtube: add '.yt' alias
Update twitter.py

Replace newlines with space, looks nicer
tag.py: add .untag, so each tag action has its own command
near: show users near you. experimental.
flake8 + autopep8 (whitespace fixes)
Merge pull request #95 from factormystic/patch-1

Update twitter.py