vector<DateAndTime> in mantidplot python interpreter

[peterfpeterson]

In order to reproduce the error:

#!python
a=LoadSNSEventNexus(Filename="/SNS/PG3/IPTS-1582/0/1879/NeXus/PG3_1879_event.nxs", OutputWorkspace="PG3_1879")
a=a.workspace()
b = a.getRun()
c = b["proton_charge"]
d = c.getStatistics()
print d.mean

Which prints in the script output

------------------------------------------------------------------------ - - - 
Wed Dec 15 16:39:19 2010: Script execution started.
------------------------------------------------------------------------ - - - 
15289841.846
Traceback (most recent call last):
  File "`<string>`", line 44, in _ScopeInspector_GetFunctionAttributes
TypeError: No to_python (by-value) converter found for C++ type: std::vector`<Mantid::Kernel::DateAndTime, std::allocator<Mantid::Kernel::DateAndTime>` >
------------------------------------------------------------------------ - - - 
Wed Dec 15 16:39:20 2010: Script execution completed successfully.
------------------------------------------------------------------------ - - - 

The fix appears to be exposing vectorMantid::Kernel::DateAndTime`` to python so mantid's python window knows what to do with it.

[peterfpeterson]

This issue was originally trac ticket 2080