deleted a console log left behind in the last merge

Change-Id: Id1c91a7f2a8f89b690ac4a328ba8edaf05d8d652
Update TopPanel for MIT App Inventor 2.

Change TopPanel for MIT App Inventor 2 (Alpha). Update logo accordingly.
Update "Learn" link to point to correct place on the MIT App Inventor
website.

Change-Id: I2c5162b227495aff21c587d478a6cd5f47dde647