Merge pull request #84 from kuba-4chain/feat/new-bump-from-stream

feat(BUMP): implementation of NewBUMPFromStream that returns bytes used

Merge pull request #83 from libsv/fix/merkle-path-optimal

[fix] optimize the BUMP calculation function to make it O(log(n))

Pending full release...

Merge pull request #82 from boecklim/fix/rm_build_merkle_tree_err

remove unused returned error

fix: BUMP for one txid only, not whole tree.

Update tests to capture more edge cases. Resolve a bug to do with ret…

…urning early when there’s only one hash in the merkle tree.

BUMP format parse hash only if not a duplicate.

nil pointer equality check

Fix bug related to nil pointer dereference.

Fix BUMP for blocks with only one tx.