Revert "Fix indentation"

This reverts commit 1df30f67239538cc070854e7acd9663edb5b6cdf.
Revert "Fix sequential consistency bug in the BPlusTrees"

This reverts commit 0503925ffe003c9013a9e806d2e39868b785933e.
Add comment to fixLeafNodeArraysListAfterSplit noting the use of bidirectional relation semantics
Merge pull request #169 from smmf/feature/restore-eae5c807e9fd531a2d9dc4eb7d55e34fba2d87be

Feature/restore eae5c807e9fd531a2d9dc4eb7d55e34fba2d87be