Add and separate table and columns prefix

Signed-off-by: Vincent-Xavier JUMEL <endymion@thetys-retz.net>
Conserve bbcode : not safe and untested

Signed-off-by: Vincent-Xavier JUMEL <endymion@thetys-retz.net>
Merge pull request #1 from vincentxavier/master

Needed to import from Debian installation.