Add splash screen

[Adam Winer]

Original [issue 22](https://code.google.com/p/scythebill-birdlist/issues/detail?id=22) created by adam_winer on 2010-12-21T01:46:13.000Z:

Birdlist shows a "Loading" window, but that takes awhile to show. Use the SplashScreen API of SE 6 (and associated command-line flags) to show some UI earlier.

[Adam Winer]

Comment [#1](https://code.google.com/p/scythebill-birdlist/issues/detail?id=22#c1) originally posted by adam_winer on 2011-01-20T18:01:06.000Z:

Implemented in 0.8.