Basics working. Keybindings, highlighting.
Added and mapped `rebase-mode-kill-line'.
Made move-{up,down} functions rebase-mode specific.
Improve the move-{up,down} functions.
Added `rebase-mode-abort'.
Docs for variables.
Document functions, mode.
Only kill a line if it looks like an action line.
Ask the user when aborting a rebase.
Clarify abort docs.
Licence, a little commentary.
Bit of formatting.
Create the edit function dynamically so we get a description in `describe-mode'.
Keep column position when moving lines.
Move column handling up a level in move functions.
C-c C-c analogous to C-c # and C-c C-k analogous to a.
Only ask to abort when buffer is modified.
c for pick, n and p for navigation.
Don't allow the editing of lines which aren't action lines.
Stop using generic-mode. Highlight comments manually.