Log Message:
(sysutils/R-ff) Updated 4.5.0 to 4.5.2

    CHANGES IN ff VERSION 4.5.2

BUG FIXES

    o removed remaining non-used definition of getZeroPageSize

    CHANGES IN ff VERSION 4.5.1

BUG FIXES

    o hi() no longer represents n=1 index as RLE packed
    o hence no longer reads from empty RLE vectors
    o Furthermore *_array access C code trows an error if a
      stored old hi() result with n=1 index is RLE packed
    o hence ff no longer crashes R > 4.4.2