* Update web test methods in 'web/tests/'.
* Added an 'RDSchedCode' class in 'lib/rdschedcode.cpp' and
'lib/rdschedcode.h'.
* Implemented the 'ListSchedCodes' web method in
'web/rdxport/schedcodes.cpp'.
* Implemented the 'AssignSchedCode' web method in
'web/rdxport/schedcodes.cpp'.
* Implemented the 'UnassignSchedCode' web method in
'web/rdxport/schedcodes.cpp'.
* Implemented the 'ListCartSchedCodes' web method in
'web/rdxport/schedcodes.cpp'.
* Extended 'RDGetWebTime()' and 'RDGetWebDateTime()' functions to
support XML 'xs' namespace formats.
* Implemented '*_POINT' fields in the 'EditCut' web method in
'web/rdxport/carts.cpp'.
* Modified the 'RDCart::removeSchedCode()' method so as to treat
scheduler codes in a case-insensitve manner.
* Modified the return of the 'EditCut' web method to provide a full
<cutList> record in 'web/rdxport/carts.cpp'.
