CONTRIBUTORS.rst: sorted and updated
CONTRIBUTORS.rst: sorted and updated

BLLIP/bllip-parser,BLLIP/bllip-parser,BLLIP/bllip-parser,BLLIP/bllip-parser,BLLIP/bllip-parser,BLLIP/bllip-parser,BLLIP/bllip-parser,BLLIP/bllip-parser