Version 1.02

- CHG: Only replace on <C-p> / <C-n> in the message buffer when the considered range is just empty lines. I came to dislike the previous replacement also when the message had been persisted.
- CHG: On <C-p> / <C-n> in the original message buffer: When the buffer is modified and a stored message is already being previewed, change the semantics of count to be interpreted relative to the currently previewed stored message. Beforehand, one had to use increasing <C-p>, 2<C-p>, 3<C-p>, etc. to iterate through stored messages (or go to the preview window and invoke the mapping there).
- ENH: Allow to override the default <C-p> / <C-n> mappings.
- Add dependency to ingo-library (vimscript #4433). *** You need to separately install ingo-library (vimscript #4433) version 1.012 (or higher)! ***