[feature] a history for the command prompt about alot

[pazz]

i took the dirty road:
ui.prompt accepts a list of strings as history parameter and captures curser up/down accordingly

[pazz]

maybe at some point we want a persistent history that is read from a file somewhere

[0x64746b]

Maybe you just wanna use readline[0]?

Somewhat related:
Just saw a bit of very impressive code parsing commands, doing tab completion and everything for free. Uses python's cmd module[1].

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[0]http://docs.python.org/library/readline.html
[1]http://docs.python.org/library/cmd.html

[pazz]

yes and no: since we use urwid, input is handeled by urwid, so you can't use readline directly but must use urwid.mainloop.get_input or something.
@cmd: early prototypes of alot actually used cmds successor cmd2. the problem here is, that cmd is hardwired to use readline or input or whatnot, point being it always directly reads from stdin, which renders it partly useless for our purpose because you can't use its input facilities and thus its tabcompletion for example.
Also, atm alot lacks a terminal like continuous output, you can only stack notification lines.
It might at some point prove promising to reattach cmd2 to alot. I removed it because i could not use most of its
features anyway. If you can bend cmd ord cmd2 to read and write from/to custom streams instead of sys.sdtin/sys.sdtout we would be better of.