CodeSnip Old Code (SVN)

* Changed TRoutineList to use TSortedObjectList<T> to maintain the list instead of using TList<T> and managing sorting explicitly in TRoutineList.
* Made TRoutineList.CompareIDs into a class method.

Updated with changes merged from new-backend branch r709 and r1051 (r1051 used to resolve conflict due to renaming of FmUserDBEditDlg unit as FmSnippetsEditorDlg):
* Renamed TRoutineData, TRoutineReferences and TRoutineEditData as TSnippetData, TSnippetReferences and TSnippetEditData respectively.

Updated with changes merged from new-backend branch r707:
* Moved TCategoryInfo from USnippets unit to UReservedCategories.

Updated with changes merged from new-backend branch r706:
* Moved TRoutineInfo and TRoutineInfoList from USnippets unit to UCodeImportExport.

* Moved all units directly concerned with supporting installed compilers into the new "Compilers" namespace. Some units were further renamed.
* Revised using units to use the new names.

Corrected copyright date range to be in line with date of last revision.

Deleted redundant units from uses clauses.

* Revised TRoutineList and TCategoryList to use Delphi's TObjectList<> object instead of project's TObjectListEx to implement list of snippets and categories respectively.
* Removed TRoutineList's and TCategoryList's private TEnumerator class. We now use enumerator provided by TObjectList<>.

Fixed memory leaks.

* Added two new event kinds: evBeforeCategoryDelete, called just before a category is deleted (freed) along with a reference to the category being freed and evAfterCategoryDelete which is triggered immediately after the category is freed.
* Modified TSnippets.InternalDeleteCategory to trigger the two new events before and after the category is freed.