v0.3.9

Fixed

• Reverted App#refresh_cmd() back to not copying over the default_proc (from v0.3.8). Because the old code didn't know about this, it created some unintended issues with command options. Nothing major, but for example, specifying output.html with the sift command would not produce HTML output (however, using the -e html option still worked). This is the only instance that I know of, but reverting the code back in case of more instances. In the future, I'll need to thoroughly test all CLI options after changing App#refresh_cmd() to copy over the default_proc, but for now, not worrying about it (as it's not necessary).