Rewind line hot key always goes to first line

[kralverde]

When using the rewind line hot key (alt+<) it always goes to the first line rather than the current line

[phanion]

This occasionally happens with me, too, if I "spam" the keys. I think this could be solved by allowing users to customize the hotkeys they use.

This would also fix the problem with foreign keyboards (pressing Alt + Z won't work on a German keyboard layout since y and z are swapped and neither key combination has any effect).