CodeSnip Old Code (SVN)

Updated to detect selection changes in managed memo control. There is no suitable memo event to handle so memo's window procedure had to be hooked.

* Created new UMemoCaretPosDisplayMgr unit to take care of displaying caret position of memo controls in associated labels.
* Revised snippets editor to use new TMemoCaretPosDisplayMgr to display memo caret positions and added caret position display for extra information memo.