use non-commercial YQL for woeid lookups
Added spanish and simplified chinese files to the gemspec.
Added description in Greek (UTF-8). Some descriptions could be more
accurate but I'm not the weather man :-).
Grammar error adjusted
Updating gem version.
Merge branch 'master' of github.com:dlt/yahoo_weatherman

Conflicts:
	lib/yahoo_weatherman.rb
	yahoo_weatherman.gemspec