[fluxus] commit

[Artem Baguinski]

in the HEAD:

- repl command line history (up/down)
- on error - switch to repl (if you don't like this behaviour i could  
make it configurable)
- other fixes and enhancements of the repl

if you want to get with the cursor outside the prompt area (hopefully  
you don't need that very often with the new history code) you have to  
cast the following spell:

Home, Left, Up ...

explanation:

you cant just use Up because in prompt area it navigates through the  
command line history

Home - in prompt area brings you to the beginning of the command line
Left - the only way to enter the read only area, where Up and Down  
work normally like in the editor

selection and Ctr+C now really work in the readonly area