CodeSnip Old Code (SVN)

* Created new UComparers unit.
* Moved TSameStringEqualityComparer class and ElfHash function from UURIParams into new unit.

New notes about web services.

Changed uses clauses to uses renamed NsWebServices.* units.

Renamed:
* UCodeSubmitter.pas as NsWebServices.UCodeSubmitter.pas,
* UDownloadMgr.pas as NsWebServices.UDBDownloadMgr.pas,
* UDownloadMonitor.pas as NsWebServices.UDownloadMonitor.pas,
* UMailListSubscriber.pas as NsWebServices.UMailListSubs.pas
* URegistrar.pas as NsWebServices.URegistrar.pas
* UWebService.pas as NsWebServices.UDDabStandard.pas

Updated TDownloadMgr, TRegistrar and TMailListSubscriber re changes to Post* method signatures in parent TDDabStdWebService class.

* Changed Post* methods of TDDabStdWebService to accept TURIParams parameters rather than TStrings or array of string.
* Removed CreateQueryStrings and temporary StringsToParams methods from TDDabStdWebService.

Added overloaded constructors and Add methods of TURIParams to create params from a TStrings object or an array of strings in form Name=Value.

Flattened class heirachy. No classes now descend from TWebService except TDDabStdWebService. Therefore the methods of TWebService were merged into TDDabStdWebService. Virtual methods of TWebService were combined with their overrides in TDDabStdWebService while other methods of TWebService were simply copied into TDDabStdWebService. TWebService was removed and TDDabStdWebService changed to descend from TBaseWebService.

Made minimal modifications to units required to compile with revised web services classes.

* Rewrote TWebService class to descend from new TBaseWebService class.
* Added some temporary support to minimise changes until testing complete.
* Removed all exception definitions from UWebService: these are now in NsWebServices.UExceptions.