v1.0.0

Update BTreeTests.swift

v0.6.1

Update BTreeTests.swift

Storage is smaller now!

Removed isLeaf and isRoot from storage, making each record stored smaller.

Struct!

BTree is now a struct rather than a class

• This has a weird implication that find() is a mutating func, but might be able to work on that in the future
• Cleaned up consistency throughout BTree
• Cleaned up storage of root in a new storage
• Removed parent property of BTreeNode, replaced with isRoot
• Removed the ability to store duplicate keys
• Properly save() nodes when they are modified
• Completely rewrote split(at:), hopefully is much more understandable and swifty now

v0.3.1

Small clean up and docs