Fixes #21. Adds support for file footers larger than 16K.
Fixes #21. Adds support for file footers larger than 16K.

vertica/orc,jorgemarsal/orc,vertica/orc,jorgemarsal/orc,vertica/orc,jorgemarsal/orc,vertica/orc,vertica/orc,jorgemarsal/orc,jorgemarsal/orc,vertica/orc,jorgemarsal/orc,vertica/orc,vertica/orc,jorgemarsal/orc,jorgemarsal/orc