Fixed copy for immutslist
Merge pull request #18 from csherratt/fix-master

Fixed clone for immutslist
added inner join
added btree_set and bitv_set
added outer_join Iterator
merge inner and outer join
remove inner_join to join
Move OrderedMapIterator into iter
Merge pull request #10 from csherratt/master

Add inner join
formalize license, bump version
description
license for real
license FOR REALS THOUGH
prototype internal iterators on blist