pydata/pandas — pull request #7465 by sinhrks (2014-06-14 21:42:43+00:00)
Title: BUG: Some offsets.apply cannot handle tz properly

There are some offsets which cannot handle input with `tz` properly
```
pd.offsets.Day().apply(pd.Timestamp('2010-01-01 9:00', tz='US/Eastern'))
# 2010-01-02 09:00:00-05:00 (Expected)

pd.offsets.CustomBusinessDay().apply(pd.Timestamp('2010-01-01 9:00', tz='US/Eastern'))
# 2010-01-04 09:00:00 (tzinfo lost)

pd.offsets.CustomBusinessMonthEnd().apply(pd.Timestamp('2010-01-01 9:00', tz='US/Eastern'))
# ValueError: Cannot compare tz-naive and tz-aware timestamps
```

### Affected Offsets
- pandas.tseries.offsets.CustomBusinessDay'
- 'pandas.tseries.offsets.CustomBusinessMonthEnd'
- 'pandas.tseries.offsets.CustomBusinessMonthBegin'
- 'pandas.tseries.offsets.BusinessMonthBegin'
- 'pandas.tseries.offsets.YearBegin'
- 'pandas.tseries.offsets.BYearBegin'
- 'pandas.tseries.offsets.YearEnd'
- 'pandas.tseries.offsets.BYearEnd'
- 'pandas.tseries.offsets.BQuarterBegin'
- 'pandas.tseries.offsets.LastWeekOfMonth'
- 'pandas.tseries.offsets.FY5253Quarter'
- 'pandas.tseries.offsets.FY5253'
- 'pandas.tseries.offsets.Week'
- 'pandas.tseries.offsets.WeekOfMonth'
- 'pandas.tseries.offsets.Easter'