Add window with history of commands

[Veticia]

As http://twitchvotes.danopia.net/ showed having a history of successful commands is very useful for tracking what has already been done. Even if these commands were not updated in real time it can help new watchers to determine what current users are trying to do.

[Veticia]

By window with history I mean not like current line by line but something like:

dd if=/<ctrl-u>curl goo.gl/Aaa<enter><up>|sh<enter>screen -x<enter><ctrl-a>cecho "hello world"<enter>pacm<tab>

OR, if we could use colors and utf we could change that into something even easier to read by making special characters stand out as:

dd if=/^Ucurl goo.gl/Aaa⏎``↑|sh⏎screen -x⏎``^Acecho "hello world"⏎pacm↹