Support SSR notation
Created by: mutalyzerbot
Original ticket: https://humgenprojects.lumc.nl/trac/mutalyzer/ticket/129 Original date: 2012/12/13 Original reporter: martijn
This is unimplemented, but currently treated as a noop. We should at least give an error, or implement it.
Example: AB026906.1:c.274_275[2]