deployApp() error when user not yet 'connected' could be more informative

[kevinushey]

E.g.:

> rsconnect::deployApp(account = "admin")
Preparing to deploy application...
 Error: /__api__/applications/?filter=user_id:1&count=100&offset=0 500 - 
<h1>An error has occurred</h1>

<p id="message">sql: no rows in result set</p> 

with warning from the server:

2014/10/24 10:18:46 warning: attempt to use invalid auth token T6fe65a29515e8a7e9c861936ed0d9280

We should nudge the user towards using rsconnect::connectUser(...) in this case.

[frankandrobot]

If I'm understanding the "connected" language correctly (think it might have evolved), it looks like this might be resolved now. Here's what I get:

# before registring the server
> rsconnect::deployApp(account="uri", server="localhost")
Error: You must register an account using setAccountInfo prior to proceeding.

# after registering the server but not the account
> rsconnect::deployApp(account="test666", server="localhost")
Error: Unknown account name 'test666' (you can use the setAccountInfo function to add a new account)

[jmcphers]

Correct, this is now resolved.