Add another location for blueprints directory

[ajw107]

Hi

I have installed Home Assistant on top of Ubuntu, and so because of this my config directory is /usr/share/hassio/homeassistant/blueprints/. This fails the test in your code when checking for the existance of the blueprints directory. As it's a pretty standard location, would it be possible for you to add this directory to your script? Thanks for your help.