Instant fuck mode

[nvbn]

At the moment thefuck is a bit slow because it needs to rerun a previous command to get an output. But that can be fixed if we'll store the output in some sort of log file. That can be done with:

• wrap shell in script;
• log everything in a logfile;
• instead of rerunning the previous command just parse the logfile.

This method has some problems, the output will be different with different shells and locales. And we'll have combined output instead of separated stdout/stderr. So we need:

• increase count of patterns in rules;
• combine stdout and stderr even for a classic mode or just put the output in both for the instant mode.

Related issues: #660, #576, #353.

[nvbn]

As a second step we can get previous commands from the log instead of the history, so we can gracefully handle typos in fuck like:

git brunch
fcuk
fuck # => git branch

Related: #453, #221