Description:
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"2003-11-19T08:30:42Z" is not recognized as the 'T' and 'Z'
are understood as two (military) time zone specifiers which 
is not legal within a single time string

this has already partly fixed in CVS so that 
"2003-11-19T08:30:42Z" is being accepted
and returns the expected value,
but "2003-11-19T08:30:42" which is also valid 
as the "Z" is optional in ISO6801 will be parsed
as a time in the (military) 'T' timezone which equals
MST whereas in ISO6801 the 'T' is only a delimiter
to be put between the date and time parts of a 
datetime string. the timezone should still be GMT
in this special case ...