* Refactored routines for parsing/writing standard date/time strings
(RFC822 and XML xs:dateTime formats) into 'lib/rddatetime.[cpp|h].
* Removed the 'RDWebDateTime()', 'RDGetWebDateTime()',
'RDGetWebDate()', 'RDGetWebTime()', 'RDGetWebMonth()',
'RDXmlDate()', 'RDXmlTime()', 'RDXmlDateTime()' and
'RDXmlTimeZoneSuffix()' functions from 'lib/rdweb.[cpp|h].
* Added a 'dateparse_test' test harness.
* Renamed the 'PyPAD.Update::dateTime()' method to
'PyPAD.Update::dateTimeString()'.
* Changed the format of the 'dateTime' field in the PAD JSON structure
from RFC822 to ISO 8601.
* Added a 'startDateTime' field to the 'now' and 'next' objects in
the PAD JSON structure.
* Added a PAD Type enumeration for use in 'PyPAD.Update'.
* Added 'PyPAD.Update::hasPadType()' and 'PyPAD.Update.startDateTime()'
methods.
* Removed 'PyPAD.Update::hasNowPad()' and 'PyPAD.Update:hasNextPad()'
methods.
* Added support for '%d(<dt>)' and '%D(<dt>)' wildcards in
'PyPAD.Update::padFields()'.
* Added an 'AddLog' method to the Web API.
* Added an 'DeleteLog' method to the Web API.
* Added a 'SaveLog' method to the Web API.
* Added 'eventLength', 'linkEventName', 'linkStartSlop',
'linkEndSlop', 'linkId', 'linkEmbedded', 'extStartTime',
'extLength', 'extCartName', 'extData', 'extEventId',
and 'extAnncType' XML fields to the return of the ListLog web
API method
* 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'.
* Fixed a regression in 'web/rdcastmanager/Makefile.am' that caused
the incorrect executable to be installed for 'rdcastmanager.cgi'.
* Refactored SQL statements in 'lib/rdweb.cpp'.
