Added min.price and max.price to the output

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/btutils@15 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
Added round.any (like round.any(x, 0.01)) to the R code. Added roundAny, ceilAny and floorAny to the cpp code.

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/btutils@16 edb9625f-4e0d-4859-8d74-9fd3b1da38cb