Add ssl to deploy

@bfulton 

This pull adds `Aerosol::Deploy#ssl`, which can enable SSL when doing the live check (it's disabled by default). To do this, we need to use `wget`'s `--no-check-certificate` flag, which requires `wget` to be compiled with SSL. See [here](https://www.gnu.org/software/wget/manual/html_node/HTTPS-_0028SSL_002fTLS_0029-Options.html).