CodeSnip Old Code (SVN)

* Refactored TGIFImageList to use a TDictionary object instead of a TStringList to map GIF resource names to image list indices.
* Replaced calls to FreeAndNil with direct calls to objects' Free method.

Refactored TCSSBuilder to use TObjectDictionary object instead of TStringList for map of CSS selector names to selector objects. TObjectDictionary owns and frees the selector objects.

Refactored TCommandBarMgr to use TDictionary object for map of command bar IDs to command bar wrapper objects instead of TIntegerList.

* Refactored TAlphabet to use TDictionary object for map characters to corresponding TLetter objects instead of TIntegerList.
* Corresponding changes were made the the non-standard custom enumerator.

Added some new TODOs.

Fixed memory leak.

* Replaced all usage of TStringStack from UStacks unit with Delphi RTL class TStack<string>.
* Removed now redundant UStacks unit from project.

* Refactored TTaggedTextEntityHandler and TTaggedTextTagHandler to use TDictionary object for map of entity or tag to related information instead of TStringList.
* Fixed minor bug in TTaggedTextEntityHandler where entities were always recorded in lower case regardless of case of entity. (Case is significant in symbolic entities).

Added new TSameStringEqualityComparer class that compares strings taking case into account.

New UComparers unit copied from revsied-webservices branch.