Fix story 52571227: 
- make sure that only FORMAT, INFO and FILTER header lines will be added to the dictionary
- added unittest to test BCF2Utils.makeDictionary 
- remove some unused parameters from few constructors in VCFSimpleHeaderLine.  


git-svn-id: http://svn.code.sf.net/p/picard/code/trunk@1534 8bce386e-0d6e-43e0-b1ca-608082c0432d
Slight wording change in comment

git-svn-id: http://svn.code.sf.net/p/picard/code/trunk@1535 8bce386e-0d6e-43e0-b1ca-608082c0432d
Merge remote-tracking branch 'upstream'