Bug, install_addon needs normalize the verbose flag into a boolean.
Bug, install_addon needs normalize the verbose flag into a boolean.

Solinea/goldstone-server,slashk/goldstone-server,Solinea/goldstone-server,slashk/goldstone-server,slashk/goldstone-server,slashk/goldstone-server,slashk/goldstone-server,Solinea/goldstone-server,Solinea/goldstone-server,Solinea/goldstone-server