Now, I'm no newbie to tabs, don't get me wrong, for I've written several ones myself (mostly jazz stuff).
However, I was attempting to learn a Bob Dylan Song at this chord layout (http://www.ultimate-guitar.com/tabs/b/bob_dylan/talkin_new_york_crd.htm) and have several questions about the author's notation.

1) What do the periods, such as "G . C . D . ." mean? I assumed it meant repeat the previous chord.

2) What do the slashes such as "/B" signify?

3) "(. /E/D . )" Parenthesis mean alternate ending?