OSX shouldn't raise error messages if growl isn't installed.

[grant-olson]

User on DevTalk reported error messages because they don't have growl installed. growl provides the pop up status updates on OSX. It is apparently no longer open source and costs $3.99 to install.

The app should silently ignore things and not attempt to do a status update if growl isn't installed.

I'll get a PR together this weekend.

[iShift]

maybe don't use growl, use system notifications center

[grant-olson]

I was unable to reproduce this on Snow Leopard. I uninstalled growl, and now I don't get pop-ups as expected, but don't get any error modals. Can someone running 10.9 test?

[PeterSurda]

I have 10.11 El Capitan. I did a clean base OS install and then got the packages through homebrew as described in the building instructions. I can't reproduce anything like this. I am not an OSX expert, but PyBitmesage does seem to use some sort of notification system on OSX, and it appears to work just like on my linux machine. I don't know what it's called but I didn't have to pay for anything or install anything unexpected. It works both when I run python manually from the terminal, as well as when I run in from the bundle created by py2app.