ERR: tz conversions at the min/max boundaries should fail if overflow
Timestamp comparisons with pd.Timestamp.max don't seem to work correctly when there are timezones, as in the code sample below. This is with Pandas 0.16.2.
#### Code Sample, a copy-pastable example if possible

```
import pandas as pd
import datetime

# should print True and does
print pd.Timestamp(datetime.date(2010,1,1)).tz_localize('UTC')<pd.Timestamp.max.tz_localize('UTC')
# should print True but prints False
print pd.Timestamp(datetime.date(2010,1,1)).tz_localize('US/Eastern')<pd.Timestamp.max.tz_localize('US/Eastern')
```
#### output of `pd.show_versions()`

```
INSTALLED VERSIONS
------------------
commit: None
python: 2.7.10.final.0
python-bits: 64
OS: Darwin
OS-release: 15.3.0
machine: x86_64
processor: i386
byteorder: little
LC_ALL: None
LANG: en_US.UTF-8

pandas: 0.16.2
nose: None
Cython: 0.23.4
numpy: 1.10.1
scipy: 0.16.1
statsmodels: None
IPython: 4.0.1
sphinx: None
patsy: 0.4.1
dateutil: 2.4.2
pytz: 2015.7
bottleneck: 1.0.0
numexpr: 2.4.6
matplotlib: 1.5.0
openpyxl: None
xlrd: None
xlwt: None
xlsxwriter: None
lxml: None
bs4: None
html5lib: None
httplib2: None
apiclient: None
sqlalchemy: None
pymysql: None
psycopg2: None
```
