integer constant overflow in generated tseries.c
The generated tseries.c included in the 0.9.0 and 0.9.1 distributions contains two integer constants that are to large for 32bit values and need an LL suffix.  Note that the LL suffix is present in the cython source.

```
--- pandas/src/tseries.c.orig   2012-11-15 00:20:20.000000000 +0000
+++ pandas/src/tseries.c        2012-11-20 22:58:37.000000000 +0000
@@ -151203,7 +151203,7 @@
  * cdef int64_t _NS_UPPER_BOUND = -9223372036854775807LL
  * 
  */
-  __pyx_v_6pandas_3lib__NS_LOWER_BOUND = -9223285636854775809;
+  __pyx_v_6pandas_3lib__NS_LOWER_BOUND = -9223285636854775809LL;

   /* "/home/wesm/code/pandas/pandas/src/datetime.pyx":665
  * 
@@ -151212,7 +151212,7 @@
  * 
  * cdef inline _check_dts_bounds(int64_t value, pandas_datetimestruct *dts):
  */
-  __pyx_v_6pandas_3lib__NS_UPPER_BOUND = -9223372036854775807;
+  __pyx_v_6pandas_3lib__NS_UPPER_BOUND = -9223372036854775807LL;

   /* "/home/wesm/code/pandas/pandas/src/datetime.pyx":745
  *         raise ValueError('Unable to parse %s' % str(val))
```
