implement FCS.endColumn() and FCS.endLine()
implement QP.clause()
implement QP.jj_save()
implement QP.clause()
implement TOkenManager.jjMoveNfa_2()
implement jjCanMove_0()
implement jjCanMove_2()
implement FCS.backup()
fix jjCanMove_2()
implement TokenManager.jjMoveNfa_2()
implement QP.term(0)
implement QueryParserBase.handleBareTokenQuery()
implement QPB.newFieldQuery()
implement QB.newQueryBuilder()
implement CachingTokenFilter ctor
implement CachingTokenFilter.reset()
implement QB.createFieldQuery()
implement CachingTokenFilter.fillCache()
change AttributeImpl to interface
add CopyTo method; implement AttributeSource.restoreState()