Remove outdated file TodoPlan-1.3.

It has already been removed from trunk some month ago.

git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/branches/BRANCH_1_5_X@22697 a592a061-630c-0410-9148-cb99ea01b6c8

development/TodoPlan-1.3

@@ -1,35 +0,0 @@
-Andre:
-
- global
-    - context sensitive keybindings
-    - better .tex -> .lyx coversion
-    - the "cursor stuff"
-    - unify "real" insets and mathed's insets
-    - David's preview stuff
-
- mathed only
-    - fill in gaps in AMS support
-    - further work on math-extern
-    - reduce memory consumption
-
-John Levon:
-	o GUII
-	o bug fixes
-
-
-Martin:
-- User-definable floats (Herbert)
-- Optional arguments (short title versions)
-- Spreadsheet functionality (basic) in tabular
-- Something else I don't remember :-)
-
-Michael:
-
-- GUII
-
-Lgb:
-- upgrade boost
-- upgrade gettext
-- textclass as string
-- force arg check on lyxfuns
-- move towards no-next code in paragraph,cursor and row.