Stop accessing the btree child page size directly from LSM code.
Merge branch 'develop' into btree-get-memsize
Fix error handling in __wt_btree_memsize, related tidy up.
whitespace
Push the btree overflow check into the inlined function.
Merge pull request #477 from wiredtiger/btree-get-memsize

Stop accessing the btree child page size directly from LSM code.