Bundle SSL certs for development version

[justmoon]

Problem

Right now, developers have to bypass an SSL warning after installing ILP Kit and running it in development mode. It's also easy to forget to edit your hosts file and there isn't a very clear error if you forget.

Proposed Solution

We could register a domain like ilp-local-dev.com and then get an SSL certificate with common names wallet1.ilp-local-dev.com, wallet2.ilp-local-dev.com and wallet3.ilp-local-dev.com. Then we could ship the dev web proxy with this SSL certificate as the default and change the instructions in the DEV setup guide to recommend wallet1.ilp-local-dev.com as the hostname.

Finally, we can put up an actual webserver at wallet1.ilp-local-dev.com which tells people to go edit their hosts file.