map ltpbrexplorer.riverscapes.net to heroku app

[joewheaton]

So this should be all renamed to LTPBR (not LT-PBR) Explorer on the front facing stuff. I think we should consider:

• A new URL: https://ltpbrexplorer.riverscapes.net. My preference is this is primary, but if needs to remap to ltpbr-explorer.herokuapp.com that is fine.
• A redirect of current https://bda-explorer.herokuapp.com/ to new URL
• Renaming gitHub Repo to ltpbr-explorer

@ybakos please point out if any of these throw up major technical difficulties or downsides I'm not considering.

[ybakos]

@joewheaton Straightforward. But I'll raise you one: the *.herokuapp.com url should be hidden entirely. We should be able to create a DNS record to "map" the hostname ltpbrexplorer.riverscapes.net to the underlying hostname on heroku. In other words, no one should/would ever see "bda-explorer.herokuapp.com".

Heroku makes it pretty easy to have vanity URLs that mask the herokuapp.com URLs.