Working version for VCF 4.1 and 4.2
First working version of the validator, supporting VCF 4.1 and 4.2 via a formal grammar implemented using the Ragel State Machine Compiler (http://www.colm.net/open-source/ragel/).
It has been tested against all the files submitted to the European Variation Archive (www.ebi.ac.uk/eva) up to this date. More stand-alone tests are being implemented and will be included in future releases.