JS fr #5206: bash-like input line operations

[Jajcus]

while it is possible to use bindings such as KEY_END, which consists of a '^[[8~' sequence, i'm not able to use non-standard (not defined in termcap/terminfo) sequences like '[Oc' (Ctrl+Right under rxvt), which is really good for moving the cursor right word by word (bash's forward-word).

{forward,backward}-word aren't possible either, along with pasting a killed word/character (bash's ^Y).

also, something's wrong with deleting a previous word with ^W: if my input is 'foo bar' and the cursor is positioned on the second 'o', ^W will leave the cursor on 'r', while it should be on the beginning of the line.

[Jajcus]

Ctrl-W already fixes.

--jajcus