Fixed bug in tokenizer.perl where comma separated lists of single
characters aren't handled correctly

input> A,B,C,D,E,F

yielded> A, B,C , D,E , F

now yields> A, B, C, D, E, F

Updated Russian nonbreaking prefixes list with capital letters
Merge pull request #44 from jgwinnup/master

Fixed bug in tokenizer.perl where comma separated lists of single characters aren't handled correctly, updated Russian NBP list