Add a silent flag

[phpmycoder]

I know this is really minor (and possibly not worth a commit), but my OCD finds it very repetitive that bd echos the name of the new PWD since it's already in my $PS1. It would be nice if there was a -q (quiet) flag that could be added to suppress this echo.

I know that you can just comment out or remove the line, so perhaps this is a frivolous issue, but this would make the update process easier in my opinion (fetch from git instead of fetch and them comment out echo line).

[pmetzner]

I would also like to see this feature.

[davinkevin]

+1

[udiboy1209]

Adding a new flag will complicate the the current method of option parsing using nested ifs.... one might need to use getopt[s], which doesn't work well while sourcing a script.

I tried using a new option for a feature in pull request #20 which was quite a disaster, and I had to take a different approach entirely.