Due to a bug in axis2, the format of java.util.Date in the SOAP request was wrong. Code generated from the WSDL could not be used due to this fact.

Side effects of this change:

- Code generated via WSDL will now work.
- Code in PHP or Perl must be changed. Instead of using the format
'-'? yyyy '-' mm '-' dd 'T' hh ':' mm ':' ss ('.' s+)? (zzzzzz)?
it must now be just 'yyyy'-'mm'-'dd'