- made the iblt implementation independent from the actual type of ?RT:key() (a little overhead but more flexible)
- made the iblt implementation independent from the actual type of ?RT:key() (a little overhead but more flexible)

git-svn-id: d89f83fc72fb49d2f5b112dfb73cea192610bdff@3409 71766da9-9752-0410-ab17-bfafa751c56a

fredrikelinder/scalaris,fredrikelinder/scalaris,fredrikelinder/scalaris,fredrikelinder/scalaris,fredrikelinder/scalaris,fredrikelinder/scalaris