* 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'.
* Added a 'CART.USE_WEIGHTING' field to the database.
* Added a 'CUTS.PLAY_ORDER' field to the database.
* Incremented the database version to 254.
* Added a 'Schedule Cuts By' control to the Edit Cart dialog in
'rdlibrary/edit_cart.cpp' and 'rdlibrary/edit_cart.h'.
* Added 'RDCart::useWeighting()' and 'RDCart::setUseWeighting()'
methods in 'lib/rdcart.cpp' and 'lib/rdcart.h'.
* Added 'RDCut::playOrder()' and 'RDCut::setPlayOrder()' methods
in 'lib/rdcut.cpp' and 'lib/rdcut.h'.
