Allow "Send as flashcard" directly on the action bar

[GoogleCodeExporter]

Currently, the "Send as flashcard" button is hidden under an extra click on the 
"Dot-dot-dot" button in the action bar.
I use that button all the time :)

It would be fantastic if you would consider making it show on the actionbar 
(showAsAction="ifRoom").

(PS: Thanks for the most awesome and fantastic app ever!)

Original issue reported on code.google.com by adi.vel...@gmail.com on 5 Feb 2015 at 12:02