Doc build bug
@changhiskhan there's some bug showing up in the docs but not in the main test suite. Can you have a look?

```
building [html]: targets for 22 source files that are out of date
updating environment: 218 added, 0 changed, 0 removed
---------------------------------------------------------------------------    
TypeError                                 Traceback (most recent call last)
<ipython-input-767-cc6f0e841b62> in <module>()
      1 df = read_csv('tmp.csv', header=None, parse_dates=date_spec,
----> 2                date_parser=conv.parse_date_time)

/home/wesm/code/pandas/pandas/io/parsers.pyc in read_csv(filepath_or_buffer, sep, dialect, header, index_col, names, skiprows, na_values, keep_default_na, thousands, comment, parse_dates, keep_date_col, dayfirst, date_parser, nrows, iterator, chunksize, skip_footer, converters, verbose, delimiter, encoding, squeeze)
    239         kwds['delimiter'] = sep
    240 
--> 241     return _read(TextParser, filepath_or_buffer, kwds)
    242 
    243 @Appender(_read_table_doc)

/home/wesm/code/pandas/pandas/io/parsers.pyc in _read(cls, filepath_or_buffer, kwds)
    192         return parser
    193 
--> 194     return parser.get_chunk()
    195 
    196 @Appender(_read_csv_doc)

/home/wesm/code/pandas/pandas/io/parsers.pyc in get_chunk(self, rows)
    812         columns = list(self.columns)
    813         if self.parse_dates is not None:
--> 814             data, columns = self._process_date_conversion(data)
    815 
    816         df = DataFrame(data=data, columns=columns, index=index)

/home/wesm/code/pandas/pandas/io/parsers.pyc in _process_date_conversion(self, data_dict)
    989 
    990                 _, col, old_names = _try_convert_dates(
--> 991                     self._conv_date, colspec, data_dict, self.orig_columns)
    992 
    993                 new_data[new_name] = col

/home/wesm/code/pandas/pandas/io/parsers.pyc in _try_convert_dates(parser, colspec, data_dict, columns)
   1120     to_parse = [data_dict[c] for c in colspec if c in data_dict]
   1121     try:
-> 1122         new_col = parser(*to_parse)
   1123     except DateConversionError:
   1124         new_col = parser(_concat_date_cols(to_parse))

/home/wesm/code/pandas/pandas/io/parsers.pyc in _conv_date(self, *date_cols)
    951                     return lib.try_parse_dates(_concat_date_cols(date_cols),
    952                                                parser=self.date_parser,
--> 953                                                dayfirst=self.dayfirst)
    954 
    955     def _process_date_conversion(self, data_dict):

/home/wesm/code/pandas/pandas/lib.so in pandas.lib.try_parse_dates (pandas/src/tseries.c:98928)()

/home/wesm/code/pandas/pandas/lib.so in pandas.lib.try_parse_dates (pandas/src/tseries.c:98870)()

TypeError: parse_date_time() takes exactly 2 arguments (1 given)
reading sources... [100%] whatsnew                                             
/home/wesm/code/pandas/doc/source/faq.rst:74: ERROR: Unknown interpreted text role "issue".
source/v0.8.0.txt:151: WARNING: Inline literal start-st
```
