Improvements: Find status & instant @wrap

[Edward K. Ream]

Recent revs contain two surprisingly helpful "small" improvements:

1. After a find command completes (successfully or not), the status areas shows:

- Whether the find command completed successfully.
- The find options in effect for the search.

Previously, the status line was only updated for unsuccessful searches, and it did not contain the find options in effect.  The new status line is much more helpful than the old.

2. Leo now immediately wraps the body pane when @wrap is in effect.

Previously, the user had to reselect the node when typing "@wrap".  Now, the colorizer ensures that wrapping is on, so wrapping happens immediately.

Edward