fix problem with firefox returning Etc/

[ferrolive]

ignore Etc timezones coming from the internationalization api

[iansinnott]

Awesome, thanks @ferrolive. Can you provide a little more context on what was going on? What was the behavior before and what is it now?

[ferrolive]

Sure @iansinnott. Only Firefox the function was returning the Intl classEtc/GMT-X instead of Asia/XXXX IANA code . With the adjustment, it will return Asia/XXXX properly.

[iansinnott]

What is the ETC timezone?

I'd be happy to merge this in, I just don't want to break functionality for anyone else.

[ferrolive]

@iansinnott I think it's one of the IANA's time zone abbreviation format. Maybe you can have more details here ftp://ftp.iana.org/tz/data/etcetera. Normally, we expect jstz library to return always the "Continent/Zone" format (ex. America/New_York, Asia/Seoul). Somehow only Firefox does some crazy stuff with the Intl class that makes jstz return that format. It does not break the code for others.

[iansinnott]

OK, merged and published as 2.0, just in case this change breaks anything for existing users.