For those who are unsure/do not know about who are eligible voters for the 2014 Scottish Indy Referendum (obviously provided they apply in time to be on electoral register in a Scottish constituencies, of course) -
http://www.electoralcommission.org.uk/__data/assets/pdf_file/0008/170396/2014-scottish-referendum-voting-guide-Large-Print.pdf states, "You can vote in the referendum if you are registered to vote in Scotland, are 16 or over on Thursday 18 September 2014 and are:
:: a British or Irish citizen living in Scotland, or
:: a European Union citizen living in Scotland, or
:: a qualifying Commonwealth citizen living in Scotland
You have to be registered to vote by Tuesday 2 September 2014 to vote in this referendum.
Qualifying Commonwealth citizens are people who have leave (permission) to enter or remain in the UK". [i.e. a commonwealth citizen not in Scotland, UK without permission]