Whitespace fixes

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Remove Twitter support

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Show correct link

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Spend less screen estate

It should work on a netbook, too.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>