DatetimeIndex from timezone-aware datetimes fails

[ijmcf]

If you try to create a DatetimeIndex from a list of timezone aware datetimes, you get the exception: "Tz-aware datetime.datetime cannot be converted to datetime64 unless utc=True"

For example:

import pandas, datetime, pytz
d = [datetime.datetime(2012, 8, 19, tzinfo=pytz.timezone('US/Eastern'))]
pandas.DatetimeIndex(d)

[ijmcf]

This is similar to issue 1676 raised by kdebrab, but that raises a different exception, so I created a new issue for this one.

[wesm]

Confirmed it's still a bug in master

[wesm]

Got this one sorted out