added "Fog" to weather dict, it was missing from the API doc
updated a few symbols
added "Drizzle" to weather dictionary, once again their documented API was incorrect"
fixed another weather dict error, umbrella with rain doesnt display correctly, swapped glyph for standard umbrella
fixed some exceptions in weather.py
Merge branch 'master' of https://github.com/while1eq1/CLI-wants-weather

Conflicts:
	weather.py
fixed merge errors
fixed typo
implemented severe weather alerts
fixed API Key
offloaded weather dict to its own file
added .gitignore for *.pyc
getting API key from environment
Made severe weather alerts optional, turn on by adding -a
only call alerts if -a is set
if APIKEY not in env then quit
Stopped "Special Statement" from showing up as a severe weather alert
Fixed README
Updated PS1example
fixed typo in scattered clouds