Text Wait/Progress Bar

This is a command line version of waitbar(). Got inspired by Paul's version but tried to rewrite it in a simpler way, so that other people may find it easier to use or modify.

Usage:
Put it in your for loop. The function will update text message only when the percentage changes, therefore there's no need to add pause() in the loop. For example:

for i = 1:n
textwaitbar(i, n, msg);

% Your execution code.
...
...
...
end