* newDiffDialog now handles URLs for ANY of the 3 Filespecs w,w/o Revs
* Tool icon provided for use to window manager (all platforms)
* Ancestral delete markers are now detected and provided as needed.
* Automatic 3way merge choice selection now uses newly detected deletions
* Extended conflict parser to not crash on diff3-style markup and permits 3way
* Diff now has stronger return code checks, AND fewer tool-fatal outcomes
* Additional popup notifications utilized to explain improper user operation
* Wrong linenumbers following final hunk (which reqd padding) now correct
* CDR Split boundary-move buttons bug fixed for single-line "push" case
* A 2-line view horizon is maintained when adjusting Split/Combine edges
* Repaired Line numbers BEYOND the FINAL hunk, when it contained padding
* A 1-line diff edge-case having NO newline no longer crashes the DiffMap
* Tooltip windows are now explicitly 'raised' when created (reqd for Mac)
* DblClick (for 'find nearest hunk') now works within Info windows
* Return (for same 'find-nearest' purpose) NO LONGER bound for Info windows
* TCL sensitive chars, ($ [ ]), in user filenames no longer crashes
* Passive "relativization" (to CWD) of displayed-only filename use now done
* CBar/Lnum hiliting no longer interacts badly when suppressed hunks exist
* Text window hiliting of final N hunks now proper when N hunks suppressed
* Setting a '-I regex' cmdline option also now activates it on startup
* Properly respecified Default Filebrowser "filetypes" viewing filter option
* Added Help explanation of Ancestral delete marks, and how to utilize
* DiffMap event handling architecture redesigned to eliminate ALL 'races'.
* Online Help brought current, whether new modification or outdated info
* Minor documentation typos (help, comment), clarifications, renamings, etc.
