Switch default values to UTC, and add sub-second values

[tpitale]

First pass, we probably need more specs in different timezones, and more structure between Time and DateTime.

Please let me know what you think @dbussink. This is passing when I run bundle exec rake spec from within do_postgres.

[tpitale]

This relates to both #78 and #79.

[tpitale]

So, this local call doesn't support setting the timezone AFAIK.

[dbussink]

Yeah, we'd need to handle the cases different here then. Use local when there's no UTC offset present, but build an object with the specific UTC offset otherwise.

[tpitale]

Hrm. TravisCI appears to be randomly killing the build after that last push.

[dbussink]

@tpitale What do you mean with killing the build?

[tpitale]

The builds stopped at random places, and the last thing in the log is: 'The build has been terminated'. https://travis-ci.org/datamapper/do/jobs/54308706#L573

[dbussink]

@tpitale I suspect something might be broken then that causes it to hang indefinitely and then Travis aborts it. I suspect it's a problem with the changes, not with Travis. Might have some time tomorrow to run this and see if there's anything standing out.

[tpitale]

Yeah, the specs stalled for me locally after that change. I'll dig in when I get home tonight. I had to reinstall my MySQL.

[tpitale]

Okay, I reverted that change from yesterday. Now I'm trying to figure out how to get mysql to work in UTC. It's just insanity.

[tpitale]

I don't think it's possible for mysql to share specs with postgresql and use a time zone other than local system time.