Rename DropboxFileApi, add method

Add a method to scan for ROMs, discourage direct use of the Dropbox API
Migrate to lambdas and new Create API
Write some code to wrap OkHttp in Rx
Implement scanForRoms
Add scanner service to secrets
Switch from using parameter to OAuth2 Header
Handle bad tokens
Models has to be JDK 1.6 compatible for Android
Dumb mistakes are dumb
End content on a newline

So that we can tell when the stream has finished writing content
Finish up the welcome flow

We don’t actually save any of the ROMs we’ve found yet, but we’ve got
all of the infrastructure to do so
Fix the build by moving the Dropbox activity to debug/release merge
Display the status as text instead of a progress bar
Check in a dummy appengine-web.xml to fix build
Code cleanup
Add OrmLite
RIP G+ binding
Shuffle erry'thing around
This stuff is moving server-side
More rearranging