getSeriesNames without defining a database name if defined on connection

[lafikl]

Hi @bencevans

This pull-request is to make databaseName optional when it's defined on connection, but you can overwrite it if want to.

I really think it's better this way.

[coveralls]

Coverage remained the same when pulling 1950424 on lafikl:master into 74c6d84 on bencevans:master.

[nichdiekuh]

Hi @lafikl,

your suggestion makes sense indeed.
I see you have also removed the "query" parameter from getSeriesUrl()(which is fine, since it's not used), however all calls for this function still contain the query parameter. If you could fix the function calls, removing the query param, I'd be happy to merge your changes.

[lafikl]

@nichdiekuh There's only one call for seriesUrl() and i removed query from it's params
I hope everything is good to merge now?

[bencevans]

Looks good to me, thanks @lafikl. I'll leave @nichdiekuh to take another look too though!

[nichdiekuh]

Oh, I was seeing ghosts this morning. You're right, there was only one call for this function. Looks good to me too. Thank you @lafikl :-)