bower/bower — pull request #507 by feross (2013-05-28 21:10:58+00:00)
Title: Add --quiet and --silent command line options

Usage example:
```
bower install --quiet
bower install --silent
```
Adding `--quiet` will suppress all output except for warnings and errors.
Adding `--silent` will suppress all output.

These options behave the same as in npm. This pull request closes issue #343.